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

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

2. Current Starting Price and Previous Prices: The current starting price is 125 euros. In previous auctions, coins with similar conditions (around 90-95) have reached hammer prices that vary, but some have exceeded 200 euros. For example, in a 2018 auction, a coin with a condition of 95 was sold for 421 euros.

3. Sales Trends: The coin has been auctioned 76 times, of which 69 have been successful sales. This suggests there is consistent interest in this coin, which may increase its value.

4. Average Prices: The average hammer price for similar coins is 96.47 euros, but given that the condition of this coin is higher, it is reasonable to expect that the hammer price will be higher.

5. Previous Estimates: In previous auctions, the estimated price for coins of similar condition has been considerably higher than the current starting price. For example, in recent auctions, hammer prices of up to 650 euros have been estimated for coins with a condition of 95.

Based on these factors, an estimated maximum purchase price for this coin could be between 200 and 300 euros, considering that the condition is high and there is a history of hammer prices that supports this estimate. However, given the interest in the coin and its condition, a price of up to 350 euros could be reasonable in a competitive auction context.