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

1. 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. Previous auction prices: By looking at the hammer prices from previous auctions for coins with a similar condition (95), we can see that the hammer prices have varied, but many have exceeded 150 euros. For example:
- In 2020, it sold for 180 euros.
- In 2019, it sold for 140 euros.
- In 2023, it sold for 160 euros.

3. Average hammer price: The average hammer price for this coin is 148.73 euros, which is also a good indicator of market value.

4. Starting price: The starting price is 125 euros, suggesting that the seller expects to obtain at least that amount.

5. Auction trends: Given that the coin has been auctioned 71 times and has had a high sales percentage (62 out of 71), this indicates consistent demand.

Based on these factors, an estimated maximum purchase price could be in the range of 180 to 200 euros, considering that the condition is high and that previous hammer prices have exceeded 180 euros on several occasions.

Therefore, a reasonable maximum purchase price could be 200 euros.