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

1. Coin Condition: The coin to be auctioned has a condition rating of 95 (EBC+), indicating that it is in very good condition. This generally translates to a higher price compared to coins with lower condition ratings.

2. Price History: By looking at previous auction prices for coins with a similar condition (95), we can see that they have reached hammer prices of up to 110 euros in past auctions. For example, at the auction on November 10, 2020, a coin with a condition of 95 was sold for 110 euros.

3. Average Hammer Price: The average hammer price for this particular coin is 36.76 euros, but this may be influenced by coins with lower condition ratings.

4. Estimated Price: In previous auctions, the estimated price for coins with a condition of 95 has been up to 90 euros.

5. Recent Trends: In the most 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 the coin in question could be between 80 and 110 euros, considering that the condition is high and there are precedents for hammer prices in that range.

Therefore, a reasonable maximum purchase price could be 100 euros.