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

1. Starting price: 50 euros.
2. Coin condition: 30 (BC+), indicating a low condition.
3. Auction history:
- In 2019, the coin with a condition of 30 was auctioned with a starting price of 60 euros and sold for 110 euros.
- In 2017, although the condition is not specified, the starting price was 75 euros and it sold for 80 euros.
- In 2024, again with a condition of 30, the starting price was 150 euros and it sold for 165 euros.

4. Average starting price: 83.75 euros.
5. Average selling price: 118.33 euros.

Given that the condition of the coin is 30 (BC+), and considering that in the past it has reached selling prices of up to 165 euros under similar conditions, we can make an estimation.

The current starting price is 50 euros, which is quite low compared to previous selling prices. However, since the condition is low, it is reasonable to adjust the maximum purchase price.

Estimation of the maximum purchase price:
- Based on the average selling price (118.33 euros) and considering the condition, a reasonable maximum purchase price could be in the range of 80 to 100 euros, given that the starting price is 50 euros and there is interest in the auction.

Therefore, an estimated maximum purchase price could be 100 euros.

Given that the coin has a condition of 30 (BC+), which indicates that it is in relatively low condition, and considering that there have been no previous auctions or sales of this reference, the estimated maximum purchase price could be slightly higher than the starting price, but not by much, as the lack of sales history may make buyers cautious.

Since the starting price is 30 euros and there is no historical data suggesting a significant increase in value, an estimated maximum purchase price could range between 30 and 50 euros, depending on collectors' interest in the auction. However, a more conservative price could be around 40 euros, considering the condition and the lack of history.

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

1. Starting price: 18 euros.
2. Coin condition: 30 (BC+), indicating a low condition.
3. Auction history: The coin has been auctioned 9 times, of which it has sold 8 times. This suggests there is a constant interest in the coin.
4. Average starting price: 29.22 euros.
5. Average hammer price: 40 euros.

### Analysis of previous prices:
- Previous hammer prices varied, but some approached 40 euros, which is the average hammer price.
- The current condition of the coin (30) is similar to the last auction in 2021, where the hammer price was 35 euros.

### Estimation:
Given that the condition is low and the starting price is 18 euros, but the average hammer price is 40 euros, we can consider that the hammer price could be in a range between 30 and 40 euros, depending on the interest of collectors in the auction.

Estimated maximum purchase price: It could be reasonable to set a maximum purchase price around 35-40 euros, given the sales history and interest in the coin. However, since the condition is only BC+, a more conservative price could be 30-35 euros.

Therefore, an estimated maximum purchase price could be 35 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 30 (BC+), indicating that it is not in the best shape. This generally negatively affects the auction price.

2. Auction History:
- In 2019, a coin with the same condition (30) was auctioned with a final price of 280 euros, suggesting that there is a market willing to pay high prices for coins of this reference, even in less than optimal conditions.
- In 2020, the starting price was 90 euros, but it did not sell, indicating that interest may have fluctuated.
- In 2017, the final price was 120 euros, which is also relevant, although the condition of that coin is not specified.
- In 2014, the final price was 190 euros, showing that interest in this coin has varied over the years.

3. Starting Price and Average Final Price: The current starting price is 125 euros, and the average final price in previous auctions is 147.25 euros. This suggests that the final price could be in a similar range.

4. Market Trends: Since the coin has sold in all previous auctions and there have been no failed sale attempts, this indicates a consistent interest in the coin.

Based on these factors, an estimated maximum purchase price could be in the range of 150 to 200 euros, considering that the condition is not optimal but there is a history of high prices in previous auctions. A price of 180 euros could be a good benchmark for a competitive offer, given the auction history and interest in the coin.

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

1. Condition: The coin has a condition of 70 (MS-), 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 coins of similar condition (70) has been approximately 19.56 euros.
- In previous auctions, hammer prices for coins with a condition of 70 have ranged between 10 and 30 euros, with a most recent hammer price of 15 euros.

3. Starting price and previous prices:
- The current starting price is 12 euros, which is slightly lower than the average starting price of 13.82 euros.
- The estimated price for this auction is 20 euros, suggesting that there are expectations for the coin to sell at a higher price.

4. Sales trends: Of the 27 times it has been auctioned, it has sold 19 times, indicating good demand and consistent interest in this coin.

Taking all these factors into account, an estimated maximum purchase price could be around 25-30 euros, as this range aligns with previous hammer prices and the condition of the coin. However, it is important to consider that the final price may vary depending on competition in the auction and the interest of other bidders.

Based on the provided data, the coin in question has a conservation grade of 75 (MBC) and has had a consistent starting price of 25 euros in previous auctions, with a hammer price also of 25 euros. This indicates that, despite the estimated price being 40 euros, there has been no increase in the hammer price in past auctions.

Since the coin has been auctioned twice and has reached the same hammer price on both occasions, it is reasonable to assume that interest in this coin has not increased significantly. Furthermore, the fact that it will be auctioned again shortly suggests that the market has not changed drastically.

Therefore, a maximum estimated purchase price could be slightly higher than the previous hammer price, but not by much, given that interest seems to be stable. An estimated maximum purchase price could be around 30-35 euros, considering a small margin for competition in the auction.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the current grade of the coin (70, MS-) and the previous auction prices of coins with similar grades.

1. Current Grade: The coin has a grade of 70 (MS-). This indicates that it is in an acceptable condition, but it is not of the highest quality.

2. Previous Auction Prices: By observing the auction prices of coins with similar grades (70 and 75), we can see that:
- In previous auctions, coins with a grade of 70 have had hammer prices ranging from 28 to 55 euros.
- Coins with a grade of 75 have had hammer prices ranging from 30 to 85 euros.

3. Average Hammer Price: The average hammer price for this coin is 58 euros, which is also a good indicator of market value.

4. Recent Trends: In the most recent auctions, hammer prices have shown a trend of being in the range of 50 to 100 euros for grades from 70 to 80.

5. Starting Price: The starting price is 18 euros, which suggests that there is considerable room for the hammer price to be higher.

Based on these points, an estimated maximum purchase price for the coin, considering its grade and previous auction prices, could be in the range of 70 to 85 euros. This aligns with the hammer prices of coins of similar grade and the observed average hammer price.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially considering the current condition of the coin (70, MBC-) and previous auction prices.

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

2. Previous auction prices:
- In previous auctions, the coin has reached hammer prices that varied significantly. For example:
- In 2020, with a condition of 90, it sold for 220 euros.
- With a condition of 80, it sold for 30 euros.
- With a condition of 70, it sold for 18 euros.
- The average hammer price for coins in similar condition (70) has been approximately 18 euros.

3. Average starting and hammer price:
- The average starting price is 21.5 euros, and the average hammer price is 36.64 euros. This suggests that, in general, coins of this reference tend to sell for above their starting price.

4. Auction trends:
- The coin has been auctioned 13 times and has sold every time, indicating consistent demand.

Based on these factors, an estimated maximum purchase price for the coin in its current state (70, MBC-) could be in the range of 25 to 40 euros. This is based on the average hammer price of coins in similar condition and historical price behavior.

Therefore, a reasonable estimated maximum purchase price could be 35 euros.

Given that the coin has a grade of 75 (MBC) and has not been auctioned or sold in the past, the starting price is 75 euros.

However, since there are no historical sales data for this reference, it is difficult to establish a maximum estimated purchase price with precision.

In general, coins in MBC condition can reach prices that vary depending on demand and rarity. Since the starting price is 75 euros, a maximum estimated purchase price could be 20-30% higher than the starting price, especially if there is interest in the auction.

Therefore, a maximum estimated purchase price could be in the range of 90 to 100 euros.

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

1. Starting Price: 75 euros.
2. Condition: The coin has a condition rating of 70 (VF-), indicating that it is in relatively good shape, although not of the highest quality.
3. Auction History: It has been auctioned once in the past and sold for 130 euros, which is the hammer price. This suggests that there is interest in the coin at that price level.
4. Average Starting and Hammer Price: The average starting price is 82.5 euros and the average hammer price is 130 euros. This indicates that, in general, coins of this reference tend to sell in a similar range.

Given that the coin has a condition rating of 70 and considering the previous hammer price of 130 euros, an estimated maximum purchase price could be set in a range between the previous hammer price and the average hammer price.

Taking all these factors into account, an estimated maximum purchase price could be approximately 120 euros. This is based on the interest shown in the previous auction and the condition of the coin.

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 70 (MS-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Historical Prices: By looking at previous auction prices for coins with similar conditions, we can see that:
- In 2018, a coin with a condition of 70 was auctioned for 30 euros.
- In 2021, a coin with a condition of 80 was auctioned for 65 euros.
- In 2022, a coin with a condition of 80 was auctioned for 85 euros.

3. Average Auction Price: The average auction price for this coin is 43.43 euros, which also gives us a reference.

4. Auction Trends: The coin has been auctioned 18 times, of which 15 have sold. This indicates a consistent interest in the coin, which may influence its price.

5. Starting Price and Average Starting Price: The starting price is 18 euros, and the average starting price is 38.37 euros. This suggests that the starting price may be below the actual value of the coin.

Taking all these factors into account, an estimated maximum purchase price for the coin could be between 50 and 70 euros, considering that the condition is good and there is a price history that supports this estimate. However, since the condition is 70, a more conservative price could be around 50 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 quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Historical Prices: Looking at previous auction prices for coins with a similar condition (80), the highest auction price was 90 euros in December 2020. There are also other auctions in the range of 45 to 90 euros.

3. Average Auction Price: The average auction price for this coin is 88.94 euros, suggesting that, in general, buyers are willing to pay close to this price.

4. Starting Price and Average Starting Price: The current starting price is 25 euros, and the average starting price is 45.28 euros. This indicates that the current starting price is relatively low compared to the average starting price.

5. Sales Trends: The coin has been auctioned 41 times, of which 36 have been sold. This suggests that there is consistent interest in this coin, which may influence the price.

Given all this, an estimated maximum purchase price for the coin could be in the range of 80 to 100 euros, considering that the condition is good and the average auction price is close to 90 euros. However, to be more conservative and taking into account the variability in auctions, 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 30 (BC+), indicating that it is not in very good shape. This will negatively affect its value compared to coins in better condition.

2. Previous auction prices:
- In 2019, the coin was auctioned with a starting price of 200 euros and sold for 300 euros, with a condition of 75.
- In 2016, the starting price was 100 euros and it sold for 130 euros, but the condition is not specified.
- In 2014, the starting price was 90 euros and it sold for 100 euros, without specifying the condition.

3. Average hammer price: The average hammer price for this coin is 176.67 euros, which provides a good reference point.

4. Current starting price: The starting price is 90 euros, which is relatively low compared to previous hammer prices.

5. Market trends: Since the coin has sold in all previous instances and there have been no failed sale attempts, this suggests that there is consistent interest in the coin.

Taking all these factors into account, and given that the current condition is quite low, an estimated maximum purchase price could be in the range of 100 to 130 euros. This is based on the fact that, although the condition is not high, the interest in the coin and previous hammer prices suggest that it could reach a reasonable price at auction.

Therefore, an estimated maximum purchase price could be 120 euros.

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

1. Current Grade: The coin has a grade of 75 (MS), indicating a medium-good quality. This is relevant because coins in better condition tend to reach higher prices.

2. Previous Auction Prices: By observing previous auction prices for coins with similar grades (75 and 70), we can see that auction prices have varied, but generally, coins with a grade of 75 have reached auction prices ranging between 130 and 190 euros.

3. Average Auction Price: The average auction price for this coin is 146.48 euros, which gives us a good reference for what buyers are willing to pay.

4. Starting Price and Estimated Price: 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 price.

5. Auction Trends: The coin has been auctioned 32 times, of which 30 have been sold. This indicates a consistent interest in the coin, which may influence the price.

Based on these factors, an estimated maximum purchase price could be in the range of 160 to 200 euros, considering that the highest auction price for similar grades has been 190 euros and that the average auction price is 146.48 euros.

Therefore, a reasonable maximum purchase price could be 180 euros. This allows for a margin for competition in the auction and aligns with previous auction prices.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, taking into account the current condition of the coin (70, VF-) and previous auction prices.

1. Condition: The coin has a condition of 70, which is considered VF-. In the past, coins with a similar condition have had auction prices that vary, but we can observe that the highest auction price for a similar condition was 70 euros in 2020.

2. Previous auction prices:
- In 2019, a coin with a condition of 70 was auctioned for 45 euros.
- In 2018, a coin with a condition of 75 was auctioned for 30 euros.
- In 2022, a coin with a condition of 70 was auctioned for 30 euros.

3. Price trends: The average auction price for similar coins seems to be in a range of 30 to 70 euros, depending on the condition and demand at the time of the auction.

4. Starting price and estimates: The current starting price is 9 euros, and the average auction price in the past has been 28.8 euros. This suggests that interest in the coin may be moderate, but the auction price could be significantly higher than the starting price.

5. Final estimate: Given that the condition is 70 and considering previous auction prices, an estimated maximum purchase price could be around 50-60 euros. This is based on the highest auction price recorded for a similar condition and the general interest in the coin.

Therefore, an estimated maximum purchase price for this coin could be 60 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 of 70 (VF-), which indicates that it is in an acceptable state, but not among the best qualities. This can influence the price, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price for similar coins in the past is 63.21 euros.
- In previous auctions, coins with a similar condition (70) have reached hammer prices of 35 euros (2020) and 45 euros (2018).
- There are also examples of coins with higher conditions (80) that have reached hammer prices of 75 euros and 90 euros.

3. Starting Price and Estimates:
- The current starting price is 20 euros, which is relatively low compared to the average hammer price.
- The average starting price of 41.29 euros suggests that there is potential for an increase in the hammer price.

4. Recent Trends: The coin has been auctioned 17 times in the past, with an 82% sell-through rate, indicating consistent interest in this coin.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 60 to 80 euros, considering that the average hammer price is 63.21 euros and that there are examples of similar coins that have reached higher prices.

Therefore, a reasonable maximum purchase price could be 75 euros.

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

1. Starting Price: 60 euros. This is the initial price of 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: In the past, this coin was auctioned with a starting price of 110 euros and sold for 110 euros. This suggests that, despite a higher starting price, the interest in the coin was sufficient to reach the final price.
4. Average Starting and Final Prices: The average starting price is 85 euros and the average final price is 110 euros. This indicates that, generally, coins of this reference tend to sell for above their starting price.

Given that the coin has a condition rating of 75 and considering the historical and average prices, an estimated maximum purchase price could be in a range between the average final price and a bit more, given that the condition is good.

Therefore, an estimated maximum purchase price could be around 120-130 euros. This is based on the good condition and the demonstrated interest in previous auctions.