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

1. Condition of the coin: 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. Auction history: By looking at previous hammer prices for coins with a similar condition (95), we can see that they have reached hammer prices of up to 170 euros (as seen in the auction on 2019-12-11).

3. Starting price and average prices: The current starting price is 60 euros, and the average hammer price in the past has been 47.87 euros. However, given the high condition, it is reasonable to expect that the hammer price will be above the average.

4. Recent trends: In recent auctions, coins with similar conditions have had hammer prices that vary, but some have reached up to 190 euros (as seen in the auction on 2022-06-28).

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 150 to 200 euros. This is due to the high condition and the history of hammer prices in previous auctions. However, the final price will depend on the competition in the auction and the interest of other buyers.