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

1. Coin Condition: The coin has a condition rating of 95 (S/C-), 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 similar conditions (around 90-100), we can see that the hammer prices have varied. For example:
- In 2019, a coin with a condition of 100 was auctioned for 200 euros.
- In 2020, a coin with a condition of 90 was auctioned for 140 euros.
- In 2023, a coin with a condition of 95 was auctioned for 130 euros.

3. Starting Price and Average Hammer Price: The current starting price is 125 euros, and the average hammer price in the past has been 78.26 euros. However, given that the condition of this coin is high, it is reasonable to expect that the hammer price will be above the average.

4. Recent Trends: In the most recent auctions, hammer prices for coins of similar condition have ranged from 120 to 180 euros.

Based on these factors, an estimated maximum purchase price for this coin could be between 150 and 200 euros, considering its good condition and the history of hammer prices. A price of 180 euros could be a reasonable target, as it falls in the middle of this range and reflects recent price trends.