To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the previous auction prices and the current condition of the coin.

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

2. Previous Auction Prices: By looking at previous auction prices for coins with a similar condition (95), we can see that they have reached auction prices that vary, but some examples are:
- 2020-12-16: Auction price 95 (condition 95)
- 2020-12-17: Auction price 260 (condition 95)
- 2020-03-12: Auction price 130 (condition 95)
- 2023-03-16: Auction price 90 (condition 95)

3. Average Auction Price: The average auction price for this coin is 98.68 euros, which is also a good indicator of the expected value.

4. Starting Price: The starting price is 60 euros, which is relatively low compared to previous auction prices.

5. Trends: Given that the coin has been auctioned 76 times and has had a high sales percentage (66 out of 76), this suggests that there is consistent interest in this coin.

Based on these factors, an estimated maximum purchase price could be in the range of 120 to 150 euros, considering that the condition is high and that previous auction prices have been significantly higher. This also takes into account the trend of prices in the market and the interest in the coin.