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 to be auctioned has a condition rating of 95 (EBC+), indicating that it is in very good condition. This generally translates to a higher value compared to coins with lower conditions.

2. Auction History:
- The average hammer price for similar coins in the past is 39.86 euros.
- The coin has been auctioned 10 times, of which it has sold 7 times, indicating good demand.
- Previous hammer prices for coins with similar conditions (90 and 85) have varied, but the highest recorded price was 70 euros for a coin with a condition of 85.

3. Starting Price: The starting price of 110 euros is quite high, which may indicate that the seller has high expectations. However, the starting price does not always translate to the final hammer price.

4. Price Trends: Looking at previous hammer prices, it seems that coins with conditions between 80 and 90 have reached hammer prices ranging from 25 to 70 euros. Given that the coin in question has a condition of 95, it is reasonable to assume that it could reach a higher price.

Considering all these factors, an estimated maximum purchase price for the coin could be between 70 and 90 euros, considering that the condition is superior to coins that have reached higher hammer prices in the past. However, given the starting price of 110 euros, some bidders may be willing to pay more, but this will depend on the competition in the auction.

Therefore, a reasonable maximum purchase price could be 80 euros.