To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 75 (VF), indicating a medium-low quality. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- The average hammer price for similar coins in the past is 133.95 euros.
- Looking at the hammer prices of coins with a similar condition (75-80), prices have varied, but there are examples of auctions reaching up to 210 euros for conditions of 80 and 90.

3. Starting Price and Estimates:
- The starting price is 90 euros, and the estimated price is 150 euros. This suggests that there are expectations for the coin to sell for a price higher than the starting bid.

4. Recent Trends: In the most recent auctions, hammer prices have shown an increase, which could indicate a rising trend in interest for coins of this reference.

5. Comparison with Previous Prices:
- In previous auctions, coins with a condition of 75 have reached hammer prices of up to 160 euros.

Based on these factors, an estimated maximum purchase price for this coin could be around 160-180 euros, considering that interest in the coin may lead to a higher than expected hammer price. However, it is important to keep in mind that the final price will depend on the competition in the auction and the interest of collectors at that time.

To estimate a maximum purchase price for the coin in question, we can consider several factors based on the provided data:

1. Current Condition: The coin has a condition rating of 70 (VF-). This is an important factor, as coins in better condition tend to fetch higher prices.

2. Current Starting Price and Previous Prices: The current starting price is 100 euros. In previous auctions, the average hammer price has been 121.93 euros, indicating that similar coins have sold for above their starting price.

3. Sales History: The coin has been auctioned 86 times, of which 78 have been successful sales. This suggests there is consistent interest in this coin.

4. Previous Hammer Prices: Looking at previous hammer prices for coins with similar conditions (70-80), we can see that they have reached hammer prices that vary, but some have gone for 140 euros or more.

5. Recent Trends: In the most recent auctions, hammer prices have shown a range that may indicate an increase in interest or value for the coin.

Based on these factors, an estimated maximum purchase price could be in the range of 140 to 160 euros. This is based on the historical hammer prices for coins of similar condition and the demonstrated interest in previous auctions.

Therefore, a reasonable maximum purchase price could be 150 euros.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 75 (MBC), which indicates that it is in quite good shape. This generally increases its value compared to coins in lower conditions.

2. Current Listing Price and Previous Prices: The current listing price is 450 euros, and the average hammer price in previous auctions is 320 euros. This suggests that the market has valued this coin in a range lower than the current listing price.

3. Auction History: The coin has been auctioned twice before, with a hammer price of 320 euros in the 2020 auction and a listing price of 350 euros in the 2024 auction, although it did not sell in the latter. This indicates that interest may have decreased, especially with a condition of 25 in the most recent auction.

4. Market Trends: Given that the average listing price of similar coins is 341.67 euros and the average hammer price is 320 euros, this suggests that the market is willing to pay around 320-350 euros for coins in similar conditions.

Taking all these factors into account, an estimated maximum purchase price for this coin could be around 350-400 euros, considering that the condition is better than in previous auctions and that the current listing price is 450 euros. However, given the sales history and the average hammer price, it would be wise not to exceed 400 euros to ensure a reasonable purchase.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 70 (VF-), indicating that it is in quite good shape. This can positively influence its value.

2. Auction History:
- In the 2021 auction, the coin was estimated at 9 euros and sold for 8 euros, suggesting limited interest at that time.
- In the 2023 auction, the coin had the same condition (70) and was estimated at 40 euros, selling for 30 euros. This indicates an increase in interest and value of the coin compared to the previous auction.

3. Starting Price and Average Prices:
- The current starting price is 18 euros, which is lower than the average hammer price of 19 euros in previous auctions. This suggests that the starting price is reasonable and could attract buyers.
- The average starting price in the past has been 21.5 euros, which also indicates potential for an increase in the hammer price.

4. Current Demand: The coin will be auctioned in the coming days, which may generate additional interest and potentially increase the hammer price.

Taking all these factors into account, an estimated maximum purchase price could be around 30-35 euros, based on the hammer price of the previous auction with the same condition and the growing interest in the coin. This would allow a buyer to be in a competitive position without exceeding the recent historical value.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 70 (VF-), indicating that it is in an acceptable state, but not of the highest quality. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- In the past, this coin has been auctioned 4 times and has sold on all occasions.
- The highest hammer price was 200 euros for a coin with a condition of 80, indicating that there is a market for high prices, but also that condition significantly influences the price.
- The average hammer price for previous auctions is 77.25 euros, providing a good reference point.

3. Starting Price and Estimates:
- The current starting price is 25 euros, which is reasonable given the price history.
- The estimated hammer price for the current auction is 50 euros, suggesting that there may be moderate interest in the coin.

4. Comparison with Previous Prices:
- In the January 2023 auction, a coin with a condition of 80 sold for 200 euros, indicating that there is potential for high prices, but also that condition is a key factor.
- In the February 2023 auction, a coin with a condition of 85 sold for 70 euros, suggesting that the price range can vary significantly depending on the condition.

Taking all these factors into account, an estimated maximum purchase price for the coin with a condition of 70 could be in the range of 50 to 80 euros, considering that interest may be moderate and that the condition is not the best. A reasonable maximum price could be 70 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data:

1. Current Condition: The coin has a condition rating of 70 (MBC-), indicating that it is in an acceptable state, but not among the best conditions.

2. Auction History:
- The coin has been auctioned 11 times in the past, of which it has sold 8 times.
- The average hammer price in previous auctions is 36.13 euros.
- Previous hammer prices varied, with a maximum price of 140 euros in a 2020 auction for a coin in condition 85.

3. Starting Prices and Estimates:
- The current starting price is 18 euros, and the average starting price in previous auctions is 24.73 euros.
- The estimated price for the current auction is 36.13 euros, which matches the average hammer price.

4. Price Trends:
- In previous auctions, hammer prices have varied significantly, but the highest recorded price (140 euros) corresponds to a coin in better condition (85).

Given that the current condition of the coin is 70, which is lower than that of the auction that reached 140 euros, and considering the average hammer price of 36.13 euros, an estimated maximum purchase price could be set in a range that reflects its condition and market interest.

Estimated Maximum Purchase Price:
We could consider a maximum purchase price of around 50-60 euros, taking into account that it is a price above the average hammer price, but reasonable given the auction history and current condition. This also allows for a margin for competition in the auction.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current condition: The coin has a condition of 30 (BC+), which indicates that it is in a relatively low state compared to coins that have been sold in the past with a condition of 70. This suggests that the hammer price could be lower than that of coins in better condition.

2. Previous prices: Previous hammer prices for coins with a condition of 70 have ranged from 21 to 28 euros. Given that the condition of the current coin is significantly lower, it is reasonable to expect that the hammer price will be below these values.

3. Average hammer price: The average hammer price for this coin in the past has been 24.5 euros. However, since the current condition is 30, it is likely that the hammer price will be below this average.

4. Starting price: The starting price is 12 euros, which may influence bidder interest.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 15 to 20 euros. This is based on the current condition and the previous hammer prices of coins in better condition. A reasonable maximum price could be 18 euros.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition rating of 70 (VF-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price of similar coins in the past is 307.88 euros.
- The coin has been auctioned 12 times, of which it has sold 8 times, indicating good demand.
- In previous auctions, hammer prices have varied, but there are examples of hammer prices exceeding 1000 euros for coins in better condition.

3. Starting Price and Estimates:
- The current starting price is 15 euros, which is relatively low compared to the average hammer price of similar coins.
- The average starting price of 111.45 euros and the average hammer price of 307.88 euros suggest there is significant potential for price increase.

4. Comparison with Previous Prices:
- In previous auctions, hammer prices have reached up to 1100 euros for coins in better condition (condition rating 100).
- For coins with similar condition (70), hammer prices have ranged from 30 to 100 euros in the most recent auctions.

Taking all these factors into account, an estimated maximum purchase price for this coin could be in the range of 100 to 150 euros. This is based on the current condition, the hammer price history, and the demand observed in previous auctions.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition rating of 30 (BC+), indicating that it is not in very good shape. This will negatively affect its value compared to coins in better condition.

2. Auction History:
- The average hammer price for similar coins in the past is 122.88 euros.
- However, the hammer prices for coins with similar conditions (30) are lower. For example, at the 2021 auction, a coin with a condition of 30 was sold for 14 euros.

3. Starting and Hammer Prices:
- The current starting price is 12 euros, which is relatively low.
- In previous auctions, starting prices have varied, but the highest hammer price for similar conditions has been 45 euros.

4. Sales Trends: The coin has been auctioned 10 times, of which it has sold 8 times, indicating good demand, although the hammer price can vary significantly.

5. Estimation Based on Previous Data: Given that the condition is low and considering the price history, a reasonable hammer price for this coin could be in the range of 15 to 30 euros, based on the lowest hammer price for similar conditions.

Conclusion: Taking all these factors into account, an estimated maximum purchase price for this coin could be approximately 30 euros. This would allow for competitive bidding in the auction without exceeding a reasonable limit given the coin's condition.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 70 (VF-), indicating that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Auction History:
- The average hammer price in previous auctions is 36.27 euros.
- The coin has been auctioned 18 times, of which it has sold 11 times. This suggests there is consistent interest in the coin.
- In recent auctions, hammer prices have varied, but there are examples of sales reaching up to 140 euros (although this was in an exceptional case).

3. Starting Prices and Estimates:
- The current starting price is 18 euros, and the average starting price in the past has been 25 euros.
- The estimated price for the current auction is 25 euros, indicating that the coin is expected to reach at least that value.

4. Price Trends:
- In recent auctions, hammer prices have ranged from 14 to 45 euros for coins with similar conditions.

Based on these factors, an estimated maximum purchase price could be in the range of 40 to 60 euros, considering that the condition is good and that interest in the coin appears to be consistent. However, since the highest recorded hammer price was 140 euros, it is possible that in an exceptional case, if there is high demand, the price could exceed this range.

Therefore, a reasonable maximum purchase price could be 60 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data and consider several factors:

1. Current Condition: The coin has a condition of 30 (BC+), indicating that it is not in the best shape. This generally affects the auction price.

2. Auction History:
- The coin has been auctioned 9 times, of which it has sold 8 times. This indicates good demand.
- Previous auction prices varied, but there are some relevant prices to consider:
- In 2020, it sold for 18 euros with a condition of 70.
- In 2020, it sold for 65 euros with a condition of 80.
- In 2021, it sold for 25 euros with a condition of 80.
- In 2022, it sold for 20 euros with a condition of 70.
- In 2024, it sold for 35 euros with a condition of 80.

3. Starting Price and Average Price:
- The current starting price is 12 euros, and the average starting price in previous auctions is 32.78 euros, with an average hammer price of 41.38 euros.

4. Price Trends:
- Hammer prices have fluctuated, but it seems there is a price range that remains between 18 and 65 euros, depending on the condition.

Given that the current condition of the coin is 30 (BC+), which is lower than the conditions of the coins that have sold for higher prices, it is reasonable to adjust the expected hammer price downward.

### Maximum Purchase Price Estimate:
Considering all these factors, a reasonable maximum purchase price could be in the range of 20 to 30 euros. This is based on the fact that the condition is not high, but there is a sales history suggesting it could reach a higher price than the current starting price.

Therefore, an estimated maximum purchase price could be 25 euros.

To estimate a maximum purchase price for the coin in question, we can analyze several factors:

1. Current Condition: The coin has a condition rating of 30 (BC+), indicating that it is not in the best condition. This generally reduces its value compared to coins in better condition.

2. Auction History:
- The average hammer price for similar coins in the past is 146.6 euros.
- The coin has been auctioned 15 times, of which it has sold 11 times, indicating good demand.
- Previous hammer prices for this coin varied, but there are examples of auctions reaching up to 650 euros in superior conditions.

3. Starting Price and Average Starting Price:
- The current starting price is 12 euros, which is quite low compared to the average starting price of 62.92 euros.

4. Recent Trends: In the most recent auction, the coin was offered at a starting price of 12 euros and was estimated at 20 euros, although it did not sell. This may indicate that interest in this coin has decreased or that the starting price is not attractive.

5. Condition of Similar Coins: Coins with higher conditions (such as 70, 75, 80, 85) have reached significantly higher hammer prices. This suggests that condition is a critical factor in determining price.

### Estimated Maximum Purchase Price
Given that the condition of the coin is 30 (BC+), and considering the auction price history and the average starting price, a reasonable maximum purchase price could be:

- Estimated Maximum Price: 30-40 euros.

This range takes into account the current condition and historical interest in the coin, as well as the fact that the starting price is low. If the auction generates interest, the price could approach the upper end of this range.

To estimate a maximum purchase price for the coin in question, we can consider several factors:

1. Current Condition: The coin has a condition of 30 (BC+), which indicates that it is not in very good shape. This will negatively affect its value compared to coins in better condition.

2. Auction History: By looking at previous auction prices, we can see that coins in better condition (for example, 85 and 95) have reached hammer prices of up to 220 euros. However, coins with lower condition have had lower hammer prices.

3. Average Hammer Price: The average hammer price for this coin is 102.91 euros, which gives us an idea of the general market value.

4. Starting Price: The current starting price is 12 euros, suggesting that the seller has low expectations compared to the average hammer price.

5. Sales Trends: The coin has been auctioned 12 times, of which 11 have been sold, indicating good demand in the market.

Given that the condition of the coin is relatively low (30), and considering the auction price history, an estimated maximum purchase price could be set in a lower range than the average hammer price.

Taking all these factors into account, an estimated maximum purchase price could be around 40-50 euros. This reflects a balance between the current condition and the price history, as well as the demand observed in previous auctions.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data and consider several factors:

1. Current Condition: The coin has a condition of 75 (MBC), which indicates that it is in quite good shape. This suggests that its value should be above that of coins with lower conditions.

2. Auction History:
- The average hammer price from previous auctions is 81.43 euros.
- The last auction with a similar condition (75) had a hammer price of 75 euros.
- Overall, hammer prices have varied, but the range seems to be between 45 and 210 euros, depending on condition and other factors.

3. Starting Price and Estimates:
- The current starting price is 30 euros, which is relatively low compared to the average hammer price.
- The average starting price of similar coins is 41.43 euros, suggesting that the current starting price could be attractive to buyers.

4. Sales Trends: Since all coins of this reference have sold in the past, this indicates a steady demand.

Based on these factors, an estimated maximum purchase price could be in the range of 80 to 100 euros, considering that the condition is good and that the auction price history supports this estimate. Therefore, a reasonable maximum purchase price could be 90 euros.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 70 (VF-), which indicates that it is in relatively good shape, but not the best possible condition.

2. Auction History:
- The average hammer price for coins of similar condition (70) has been approximately 30-70 euros in previous auctions.
- In past auctions, hammer prices have varied, but there are examples of sales at 30, 35, and even 70 euros for coins with the same condition.

3. Starting Price and Previous Prices:
- The current starting price is 25 euros, which is reasonable given the history of starting and hammer prices.
- The average hammer price in the past has been 50.17 euros, suggesting there is potential for a higher sale price.

4. Recent Trends:
- In the most recent auctions, hammer prices have been 65 euros and 45 euros for coins with conditions of 80, indicating a growing interest in coins of good condition.

Based on these factors, an estimated maximum purchase price for the coin could be between 60 and 80 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate.

Therefore, a reasonable maximum purchase price could be 70 euros.

To estimate a maximum purchase price for the coin in question, we can consider several factors based on the provided data:

1. Coin Condition: The coin has a condition rating of 70 (MS-), indicating that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Auction History:
- The average hammer price for coins with a similar condition (70) in the past has been 40.7 euros.
- In previous auctions, hammer prices for coins with a condition of 70 have varied, but there have been hammer prices of up to 60 euros in recent auctions.

3. Starting Price and Previous Prices:
- The current starting price is 12 euros, which is relatively low compared to previous hammer prices.
- The average starting price in the past has been 27.41 euros, suggesting that the current starting price could be a good buying opportunity.

4. Price Trends:
- In recent auctions, hammer prices have shown a trend of increasing, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price for this coin could be between 50 and 60 euros, considering that the average hammer price for coins with similar conditions has been 40.7 euros and that there is potential for the hammer price to reach higher figures depending on demand and collector interest.

Therefore, a reasonable maximum purchase price could be 55 euros.

To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 70 (MS-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price for coins with similar condition (70) in the past has been approximately 30-40 euros.
- In previous auctions, coins with a condition of 70 have reached hammer prices that varied, but generally fall within the range of 22 to 30 euros.

3. Starting Price and Average Hammer Price:
- The current starting price is 18 euros, which is relatively low compared to the average hammer price of 58.45 euros.
- The average starting price of 40.09 euros also suggests that there is potential for an increase in the hammer price.

4. Recent Trends: In the most recent auctions, the hammer price for coins with a condition of 70 has been around 30-40 euros, indicating that interest in these coins remains strong.

Based on these factors, an estimated maximum purchase price for this coin could be between 40 and 50 euros. This is based on the historical hammer prices for coins of similar condition and the potential increase in collector interest.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data:

1. Condition: The coin has a condition of 70 (MBC-), indicating that it is in relatively good shape, but not of the highest quality (FDC).

2. Previous auction prices:
- In 2022, a coin with a condition of 80 was auctioned with a starting price of 35 euros and an estimated price of 45 euros. This suggests that as the condition improves, the price also increases significantly.
- In other auctions, hammer prices have varied, but they have generally been in a range of 24 to 35 euros for lower conditions (30).

3. Average hammer price: The average hammer price for similar coins is 27.5 euros, which can serve as a good indicator of market value.

4. Starting price and estimates: The current starting price is 18 euros, and the average starting price is 20.75 euros. This suggests that interest in the coin may be moderate.

Given that the condition of the coin is 70 and considering previous hammer prices, an estimated maximum purchase price could be in the range of 30 to 35 euros, taking into account that the condition is better than some coins that have sold in the past, but not high enough to reach the highest hammer prices.

Therefore, an estimated maximum purchase price could be 35 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the previous auction prices and the current condition of the coin.

1. Condition: The coin has a condition of 70 (MS-), which is an average condition. This suggests that its value could be in the mid-range of previous auction prices for coins with the same condition.

2. Previous auction prices:
- In previous auctions, the hammer prices for coins with a condition of 70 have varied. For example:
- 2019-10-17: €320
- 2018-12-11: €75
- 2019-07-04: €80
- 2021-06-03: €65
- The highest hammer price was €320, but this may be an exceptional case. Most hammer prices for coins with a condition of 70 seem to be in a lower range, around €75 to €130.

3. Average hammer price: The average hammer price for this coin is €130.73, which can also serve as a reference.

4. Starting price: The current starting price is €30, indicating that there is considerable room for the hammer price to be higher.

5. Estimation: Given that the condition is 70 and considering the previous auction prices, an estimated maximum purchase price could be in a range between €130 and €200, taking into account that the average hammer price is €130.73 and that there is potential for the price to rise in the auction.

Therefore, a reasonable estimated maximum purchase price for this coin could be €150. This allows for a margin of safety and aligns with previous hammer prices.

To estimate a maximum purchase price for the coin in question, let's consider the following factors:

1. Starting Price: 30 euros, which is the initial price of the auction.
2. Current Condition: 25 (BC), indicating that the coin is in quite low condition. This generally negatively affects the final price.
3. Auction History: In the past, this coin was auctioned with a condition of 70, reaching a final price of 220 euros. This suggests that in better condition, the value could be significantly higher.
4. Average Final Price: 220 euros, which is the average price that has been reached in previous auctions for this coin.

Given that the current condition is quite low (25), it is reasonable to expect that the final price will be below the average of 220 euros. However, since there has been interest in this coin (it has sold in the past and has not gone unsold), we can estimate a final price that reflects its condition.

Taking all these factors into account, an estimated maximum purchase price could be between 50 and 80 euros. This is based on the idea that, although the condition is low, there is a history of interest and a previous final price that suggests there may be buyers willing to pay more than the starting price.

Therefore, a reasonable maximum purchase price could be 70 euros.