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

2. Previous Prices: By looking at previous auction prices for coins with similar conditions (95 and 100), we can see that auction prices have varied. For example:
- In 2023, a coin with a condition of 95 was auctioned for 45 euros.
- In 2022, another coin with a condition of 95 was auctioned for 25 euros.
- In 2021, a coin with a condition of 95 was auctioned for 45 euros.

3. Average Auction Price: The average auction price for this coin is 16.81 euros, but given the high condition, we can expect the actual auction price to be above this average.

4. Starting Price and Estimates: The starting price is 15 euros, and the average starting price is 12.15 euros. However, since there is interest in the coin (2 upcoming auctions), this could drive the price up.

5. Auction Trends: The coin has been auctioned 41 times, with an 85% sell-through rate, indicating good demand.

Based on these factors, an estimated maximum purchase price could be between 30 and 50 euros, considering the high condition and previous auction prices. A price of 45 euros could be a reasonable target, given that it has been the highest auction price for coins of similar condition in the recent past.

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

1. Coin Condition: The coin to be auctioned has a condition of 95 (S/C-), indicating that it is in very good shape. This generally increases its value compared to coins with lower conditions.

2. Previous Auction Prices: By observing the hammer prices of coins with a similar condition (95), we can see that they have reached varying hammer prices. For example:
- In the auction on 2021-12-16, a coin with a condition of 95 was sold for 40 euros.
- In other auctions, the hammer prices for coins with a condition of 95 have ranged from 10 to 30 euros.

3. Average Hammer Price: The average hammer price for this particular coin is 17.29 euros, which is also a useful indicator.

4. Starting Price: The starting price is 15 euros, suggesting that the seller expects a reasonable price for the coin.

5. Auction Trends: Given that there have been 52 auctions for this coin and 24 have resulted in sales, there is considerable interest in this coin, which may influence the price.

Based on these factors, an estimated maximum purchase price could be in the range of 30 to 40 euros, considering that the condition is high and there are precedents for sales in that range. However, since the starting price is 15 euros, it is likely that the hammer price will not significantly exceed this range unless there is strong competition among bidders.

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