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

1. Current Condition: The coin has a condition rating of 75 (MBC), indicating that it is in fairly good shape, but not of the highest quality (FDC).

2. Historical Prices: By looking at previous auction prices for coins with similar conditions, we can see that auction prices have varied. For example:
- In past auctions, coins with conditions ranging from 75 to 85 have reached hammer prices between 70 and 200 euros, depending on demand and other factors.

3. Average Hammer Price: The average hammer price for this coin has been 131.21 euros, which provides a good reference point.

4. Starting Price and Average Starting Price: The current starting price is 60 euros, and the average starting price is 85.33 euros. This suggests that the market is willing to pay more than the starting price, but not necessarily the average hammer price.

5. Recent Trends: In the most recent auctions, hammer prices have shown a trend of being higher, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price for this coin could be between 150 and 200 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate. However, the exact price may vary depending on competition in the auction and specific demand at that time.