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 in a fairly deteriorated state. This will negatively affect its value compared to coins in better condition.

2. Auction History:
- In 2019, a similar coin was auctioned with a starting price of 1100 euros and a final price of 4500 euros, but it had a condition rating of 80, which is significantly better than the current condition.
- In 2017, another coin was auctioned with a starting price of 2000 euros and a final price of 3300 euros, but again, the condition is not specified, although it can be assumed to be better than the current one.
- In 2017, another auction had a starting price of 1100 euros and a final price of 1300 euros, indicating that the interest in that coin was lower.

3. Average Starting and Final Prices: The average starting price is 1150 euros and the average final price is 2400 euros. This suggests that, in general, coins of this reference tend to reach higher prices, but the condition of the current coin is a limiting factor.

4. Demand and Supply: Since the coin has been sold in all previous instances and there have been no failed sale attempts, this indicates that there is a consistent interest in this reference, although the current condition may limit the price.

Taking all these factors into account, an estimated maximum purchase price for this coin, considering its condition and auction history, could be in the range of 600 to 800 euros. This reflects a price that is reasonable given its state, but also takes into account the historical interest in the coin.

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

1. Condition: The coin has a condition of 80 (VF+), indicating that it is in quite good shape.

2. Previous auction prices:
- In previous auctions, coins with a similar condition (80) have had auction prices that vary, but some examples are:
- 2023-01-18: 170 euros
- 2022-10-19: 240 euros
- 2022-02-17: 115 euros
- 2022-04-27: 115 euros

3. Average auction price: The average auction price for this coin is 122.63 euros, which is also a good indicator.

4. Starting price: The starting price is 75 euros, which is reasonable and may attract bidders.

Given that the condition is good and previous auction prices have reached significant figures, an estimated maximum purchase price could be in the range of 170 to 240 euros, based on the highest previous auctions.

Final estimation: A reasonable maximum purchase price could be 200 euros. This is based on the trend of previous auction prices and the current condition of the coin.

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 80 (MBC+), indicating that it is in good condition. 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 (80) has been 114.67 euros.
- In previous auctions, coins with a condition of 80 have reached hammer prices of up to 295 euros (in 2017).
- The trend of hammer prices for coins in condition 80 has generally been positive, with several auctions exceeding 100 euros.

3. Starting Price and Average Starting Price:
- The current starting price is 60 euros, which is below the average starting price of 71.56 euros. This suggests that there is potential for the hammer price to be higher.

4. Supply and Demand: The coin has been auctioned 47 times in the past, with an 85% sell-through rate (40 out of 47). This indicates good demand, which can push the price up.

5. Previous Estimated Prices: Estimated prices in previous auctions for coins in condition 80 have varied, but many have been in the range of 90 to 200 euros.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 120 to 150 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate. However, given the history of higher prices, a maximum purchase price could reasonably be set at 150 euros.

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

1. Starting Price: 900 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 70 (VF-), indicating that it is in fairly good shape, although not the best possible condition. This may influence collectors' interest.
3. Auction History: The coin has been auctioned once in the past but did not sell, which may indicate that the starting price is high or that there is insufficient demand.
4. Average Hammer Price: There is no data on previous sales, making it more difficult to estimate a hammer price.

Given that the starting price is 900 euros and considering that it did not sell in the previous auction, it is possible that bidders may be willing to offer a bit less than the starting price. However, since the condition is reasonably good, we could estimate that the hammer price might be close to the starting price but not necessarily reach it.

Taking these factors into account, an estimated maximum purchase price could be between 700 and 850 euros. This would allow bidders to have a margin to compete without reaching the starting price, which could be considered high if there is not enough interest.

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

1. Starting Price: 1200 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 75 (MBC), indicating that it is in fairly good shape, but not the best possible condition.
3. Historical Data:
- It has been auctioned in the past 2 times, of which it sold 1 time and did not sell 1 time.
- The average starting price in previous auctions was 750 euros, and the average hammer price was 300 euros.
- In the most recent auction, the coin was offered with a starting price of 300 euros and sold for 300 euros, with a condition rating of 70.

Given that the current starting price is significantly higher than the previous average hammer price and the starting price of the most recent auction, this suggests that the market may be valuing this coin differently this time.

However, since the condition is good but not excellent, and considering the historical prices, an estimated maximum purchase price could be in a range that reflects both the quality of the coin and the market trend.

Taking all these factors into account, an estimated maximum purchase price could be around 600 to 800 euros. This is based on the fact that, although the starting price is 1200 euros, the sales history and average hammer price suggest that buyers may not be willing to pay that much.

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 fairly good shape, but it is not the best possible condition.

2. Historical Prices: By looking at previous auction prices for coins with similar conditions (75 and 70), we can see that auction prices have varied but have reached significant figures. For example:
- In 2018, a coin with a condition of 75 was auctioned for 200 euros.
- In 2022, another coin with a condition of 75 was auctioned for 270 euros.

3. Average Auction Price: The average auction price for this coin is 159 euros, which gives us an idea of what buyers are willing to pay on average.

4. Starting Price: The starting price is 90 euros, which may attract more bidders, but it can also indicate that the seller expects a lower price initially.

5. Auction Trends: The coin has been auctioned 18 times, of which 15 have sold. This suggests that there is a consistent interest in this coin.

Based on these factors, an estimated maximum purchase price could be between 200 and 270 euros, given that it is the range observed in previous auctions for coins with a similar condition. However, considering the starting price and the interest in the auction, a more conservative maximum price could be approximately 220 euros. This allows for competition in the auction and reflects the historical interest in the coin.

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 80 (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 this coin in the past is 205 euros.
- The last auction with a hammer price was 200 euros for a coin with a condition of 80.
- In previous auctions, hammer prices have varied, but there are examples of sales reaching up to 370 euros.

3. Starting Price and Average Starting Price:
- The current starting price is 150 euros, which is below the historical average hammer price.
- The average starting price is 143.41 euros, suggesting that the current starting price is reasonable.

4. Sales Trends: The coin has been auctioned 17 times, of which 14 have sold, indicating good demand.

5. Comparison with Previous Prices:
- In previous auctions, the coin has reached hammer prices of up to 290 euros in similar conditions.

Based on these factors, an estimated maximum purchase price could be in the range of 200 to 300 euros, considering that the condition is good and the price history shows it has reached higher figures in the past.

Therefore, a reasonable estimated maximum purchase price could be 250 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 80 (MBC+), indicating that it is in quite good shape. This is important because coins in better condition tend to fetch higher prices at auctions.

2. Previous auction prices:
- In previous auctions, we have seen hammer prices that vary, but there are several examples of coins with similar condition (80) that have sold for prices ranging between 340 and 420 euros.
- The highest hammer price for a coin with condition 80 was 420 euros.

3. Average hammer price: The average hammer price for this coin is 299 euros, suggesting that, in general, buyers are willing to pay around this amount.

4. Starting price: The starting price of 600 euros is relatively high compared to previous hammer prices, which could indicate that the seller expects a higher price due to demand or the quality of the coin.

5. Auction trends: Given that the coin has been auctioned 14 times and has sold 9 of those times, there is a consistent interest in this coin, which may influence the price.

### Estimation of the maximum purchase price:
Taking all these factors into account, a reasonable maximum purchase price could be in the range of 400 to 450 euros. This is based on the highest hammer price observed for coins of similar condition and the general interest in the coin.

Therefore, an estimated maximum purchase price could be 450 euros.

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 80 (MBC+), indicating that it is in relatively good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Current Starting Price and Previous Prices: The current starting price is 600 euros, which is significantly higher than the average starting price of 330.36 euros. However, the average hammer price is 477.43 euros, suggesting that similar coins have performed well in previous auctions.

3. Sales History: Out of the 14 times this coin has been auctioned, it has sold 7 times, indicating a consistent interest in the coin. This is a good indicator that there may be competition in the auction.

4. Previous Hammer Prices: Looking at previous hammer prices, the highest recorded price was 750 euros in 2014, while other recent hammer prices have been lower, but still in the range of 400-450 euros.

5. Market Trends: Given that the coin's condition is relatively high and considering the interest in past auctions, it is reasonable to assume that the price could be in the upper range of previous hammer prices.

Based on these factors, an estimated maximum purchase price could be between 600 and 750 euros. However, since the starting price is 600 euros, a more conservative maximum purchase price could be around 700 euros, which would allow for competition without exceeding the starting price.

Therefore, the estimated maximum purchase price would be 700 euros.

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

1. Condition: The coin has a condition rating of 90 (EF), which indicates 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 similar coins in the past is 39.38 euros.
- The coin has been auctioned 18 times, of which it has sold 15 times, indicating good demand.
- Previous hammer prices for coins with similar conditions (80-85) have ranged between 25 and 65 euros.

3. Starting Price and Estimates:
- The current starting price is 25 euros, and the average starting price in the past has been 27.21 euros.
- The estimated price for this auction is 30 euros.

Given that the condition of the coin is high (90) and considering the auction price history, a reasonable maximum purchase price could be in the range of 50 to 70 euros. This is based on the fact that coins in similar conditions have reached hammer prices of up to 65 euros in the past.

Therefore, an estimated maximum purchase price could be 65 euros.

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

1. Current Condition: The coin has a condition rating of 80 (MBC+), 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 similar coins in the past is 45.17 euros.
- The last auction for a coin with a similar condition (80) had a hammer price of 40 euros.
- In previous auctions, hammer prices for coins with a condition of 80 have ranged between 25 and 60 euros.

3. Starting Price: The starting price for this auction is 40 euros, which is a good starting point.

4. Price Trends: Observing previous hammer prices, it seems there is a trend for coins with a condition of 80 to sell in a range of 30 to 60 euros, with some exceptional cases reaching up to 70 euros.

Based on these factors, an estimated maximum purchase price for this coin could be around 60-70 euros, considering that the condition is good and that interest in the coin may be high. However, since the starting price is 40 euros, it is likely that the hammer price will not significantly exceed this value unless there is strong competition among bidders.

Therefore, a reasonable maximum purchase price could be 65 euros.

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

1. Coin Condition: The coin has a condition rating of 80 (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 (80) has been approximately 49.67 euros.
- In previous auctions, the hammer price has varied, with a maximum of 110 euros in a recent auction (2023-02-16) for a coin with a condition of 90, indicating that there is a market willing to pay high prices for well-preserved coins.

3. Starting Price and Previous Prices:
- The current starting price is 30 euros, which is slightly higher than the average starting price of 25.3 euros. This may indicate an expectation that the coin will sell for a higher price.
- In previous auctions, the hammer price for coins with a condition of 80 has ranged between 30 and 105 euros.

4. Recent Trends: In the most recent auctions, hammer prices have shown an upward trend, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price for this coin could be around 70-80 euros. This is based on the historical hammer prices for coins with similar conditions and the current market trend.

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 fairly good shape, although it is not the best possible condition.

2. Auction History:
- The average hammer price in previous auctions has been 47.97 euros.
- In past auctions, coins with similar conditions (around 80-85) have reached hammer prices of up to 85 euros.
- The last auction for this coin had a hammer price of 85 euros in 2024.

3. Starting Price and Average Starting Price:
- The current starting price is 18 euros, which is quite low compared to previous hammer prices.
- The average starting price in previous auctions is 28.06 euros.

4. Recent Trends:
- In the most recent auctions, hammer prices have shown a trend of being in the range of 40-85 euros for similar conditions.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 70 to 85 euros, considering that the condition is good and that the hammer price history supports this estimate.

Therefore, a reasonable estimated maximum purchase price would be 80 euros.

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 80 (MBC+), indicating that it is in relatively good shape. This suggests that its value could be in the upper range of previous auction prices.

2. Starting Price and Average Hammer Price: The starting price is 90 euros, and the average hammer price in previous auctions is 123.35 euros. This indicates that, generally, coins of this reference tend to sell for above their starting price.

3. Sales History: The coin has been auctioned 26 times, of which it has sold 24 times. This suggests good demand and consistent interest in this coin.

4. Previous Hammer Prices: Looking at previous hammer prices, we can see that on several occasions, coins with similar conditions have reached hammer prices that varied significantly, but some have exceeded 150 euros. For example, in 2018, a coin with a condition of 80 sold for 320 euros.

5. Recent Trends: In the most recent auctions, hammer prices have ranged from 110 to 162 euros for coins with similar conditions.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 150 to 180 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate. However, since the starting price is 90 euros, it is likely that buyers will be willing to bid beyond this price, especially if there is interest in the coin.

Therefore, a reasonable maximum purchase price could be 170 euros.

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

1. Coin Condition: The coin has a condition rating of 80 (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: By looking at previous hammer prices for coins with similar conditions (around 80), we can see that the hammer prices have varied. For example, in past auctions, coins with a condition of 80 have reached hammer prices of up to 90 euros.

3. Starting Price and Average Prices: The current starting price is 45 euros, and the average hammer price in the past has been approximately 44.63 euros. This suggests that the market is willing to pay close to this price, but given that the condition is good, we might expect a higher hammer price.

4. Recent Trends: In the most recent auctions, hammer prices for coins with similar conditions have been in the range of 80 to 90 euros.

Taking all these factors into account, an estimated maximum purchase price for this coin could be around 85-90 euros. This is based on the historical hammer prices for coins of similar condition and the current market trend.

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 of 85 (ebc-), indicating that it is in quite good shape. This suggests that its value should be in the upper range of previous auction prices.

2. Previous Auction Prices:
- In 2020, the coin was auctioned for 70 euros with a condition of 70.
- In 2019, it was auctioned for 140 euros with a condition of 80.
- In 2022, it was auctioned for 220 euros with a condition of 80.

3. Average Auction Price: The average auction price for this coin is 118.33 euros, which is also a good indicator of the expected value.

4. Starting Price: The current starting price is 90 euros, which is reasonable given the price history.

5. Trends: Observing the auction prices, it seems there is an upward trend in auction prices in recent years, especially in 2022.

Given that the condition of the coin is better than that of previous auctions and considering the average auction price, an estimated maximum purchase price could be in the range of 150 to 220 euros, taking into account that the highest auction price in the past was 220 euros.

Therefore, a reasonable estimated maximum purchase price could be 200 euros. This allows for some margin for competition in the auction, given that the starting price is 90 euros.

To estimate a maximum purchase price for the coin that is going to be auctioned, we can consider several factors:

1. Coin Condition: The coin in question has a condition of 85 (ebc-), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Price History: By looking at previous auction prices for coins with a similar condition (85), we can see that they have reached auction prices that vary, but some examples are:
- 40 euros (2020-10-21)
- 75 euros (2020-10-21)
- 40 euros (2020-09-17)
- 70 euros (2020-03-12)
- 100 euros (2020-02-13)

3. Average Auction Price: The average auction price for this coin is 60.04 euros, which is also a good indicator of the expected value.

4. Starting Price: The starting price is 40 euros, which can be a good starting point for the auction.

5. Recent Trends: In recent auctions, auction prices exceeding 100 euros have been seen for coins of similar condition, suggesting that there is growing interest in this type of coin.

Taking all these factors into account, an estimated maximum purchase price for this coin could be between 80 and 120 euros, considering that the condition is good and there is a price history that supports this estimate. A price of 100 euros could be a reasonable target for a maximum bid.

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 80 (MS+), indicating that it is in fairly good shape, but not the best possible condition.

2. Previous Auction Prices:
- The average hammer price for coins with a similar condition (80) has been approximately 220-270 euros in recent auctions.
- In previous auctions, coins with a condition of 80 have reached hammer prices of up to 750 euros, although this was for a condition of 90.

3. Starting Price and Average Starting Price:
- The current starting price is 150 euros, which is below the average starting price of 181.04 euros. This suggests that there is potential for the hammer price to be higher.

4. Sales Trends: The coin has been sold in 92.86% of the auctions it has participated in, indicating good demand.

5. Previous Estimates: In previous auctions, the estimated price for coins with a similar condition has ranged from 200 to 350 euros.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 250 to 300 euros. This is based on the current condition, previous hammer prices, and sales trends. However, it is important to note that the final price may vary depending on competition in the auction and the interest of collectors.

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 80 (MBC+), indicating that it is in quite good shape. This generally translates to a higher price compared to coins in lower condition.

2. Auction History:
- It has been auctioned 4 times in the past, of which 3 have sold. This suggests there is interest in the coin.
- Previous starting and hammer prices are relevant. For example:
- In 2018, the starting price was 400 euros, but the hammer price is unknown.
- In 2017, the starting price was 250 euros and it hammered at 380 euros.
- In 2014, the starting price was 400 euros and it hammered at 400 euros.

3. Average Starting and Hammer Price:
- The average starting price is 337.5 euros and the average hammer price is 370 euros. This indicates that, in general, coins of this reference tend to sell above their starting price.

4. Current Starting Price: The current starting price is 300 euros, which is lower than the average starting price and previous starting prices.

Based on these factors, we can estimate a maximum purchase price. Given that the condition is good and the interest in the coin seems solid, a hammer price that could be considered reasonable might be in the range of 400 to 450 euros, taking into account that the starting price is 300 euros and previous auctions have shown hammer prices in that range.

Estimated maximum purchase price: 450 euros.

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

1. Current starting price: 150 euros.
2. Coin condition: 75 (MS), which is a fairly good condition.
3. Auction history:
- The average hammer price in previous auctions is 182.5 euros.
- The coin has been auctioned 15 times, of which it has sold 14 times, indicating good demand.
- In previous auctions with similar condition (75), hammer prices have varied, but there are examples of sales reaching up to 320 euros.

4. Previous hammer prices:
- In 2023, a coin with condition 75 sold for 320 euros.
- In 2022, it sold for 300 euros.
- In 2019, the hammer price was 170 euros.

Given that the coin's condition is good and there are examples of high hammer prices in the past, we can consider that the hammer price could be in a high range.

### Estimation of the maximum purchase price:
- Based on the average hammer price (182.5 euros) and the higher hammer prices (up to 320 euros), a reasonable maximum purchase price could be between 200 and 250 euros, considering that the starting price is 150 euros and that there is a good possibility that the hammer price will exceed the starting price.

Therefore, an estimated maximum purchase price could be 250 euros.