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 (EBC+), indicating that it is in very good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Current Price and Previous Prices: The current starting price is 125 euros. In previous auctions, we have seen hammer prices that vary significantly, but there are examples of coins with similar conditions that have sold for significantly higher prices. For instance, in a previous auction, a coin with a condition of 95 sold for 380 euros.

3. Price Trends: The average hammer price for similar coins is 51.28 euros, but this may be influenced by coins with lower conditions. Given that the condition of this coin is high, it is reasonable to expect that the hammer price will be above the average.

4. Supply and Demand: The coin has been auctioned 168 times, of which it has sold 136 times. This indicates good demand, which can drive up the price.

5. Comparison with Previous Prices: In the auction history, there are examples of coins with a condition of 95 that have sold for prices ranging from 100 to 460 euros. This suggests that there is a wide price range depending on demand at the time of the auction.

Taking all these factors into account, an estimated maximum purchase price for this coin could be between 200 and 300 euros, considering its high condition and the price trends in previous auctions. However, given the starting price of 125 euros, it is possible that buyers may be willing to bid more, especially if there is interest in the coin.