To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the current condition of the coin (95, S/C-) and previous auction prices.

1. Condition: The coin has a condition of 95, indicating that it is in very good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Previous auction prices: By looking at the auction prices of coins with a similar condition (95), we can see that they have reached auction prices of up to 30 euros in recent auctions. For example:
- In 2020, a coin with a condition of 95 was auctioned for 30 euros.
- In 2022, another coin with a condition of 95 was auctioned for 25 euros.

3. Average auction price: The average auction price for this coin is 32.21 euros, which also suggests that the price could be in that range.

4. Auction trends: The coin has been auctioned 25 times, with a high sales percentage (24 out of 25). This indicates a consistent interest in this coin, which may increase its value.

5. Starting price: The starting price is 10 euros, which is relatively low compared to previous auction prices.

Based on these factors, an estimated maximum purchase price for this coin could be between 30 and 40 euros, considering that the condition is high and that previous auction prices have reached similar figures. Therefore, a reasonable maximum purchase price could be 35 euros.