Based on the provided data, we can observe that the coin in question has had a starting price in this auction of 25 euros, with a conservation grade of 75 (MBC). Additionally, it has been auctioned in the past on several occasions, with varying starting and final prices.

The average starting price of this coin in previous auctions has been 35.82 euros, while the average final price has been 56.7 euros. In previous auctions, the estimated price has ranged between 15 and 110 euros, depending on the conservation of the coin.

Given that the conservation grade of the coin in this auction is 75 (MBC), and considering the previous prices of similar auctions, as well as the fact that it has sold in all previous occasions, we could estimate a maximum purchase price around 70-80 euros for this coin in the current auction. It is important to consider that this is just an estimate and the final price may vary depending on the demand at the auction.