Based on the data provided, we can observe that the coin has had an average auction price of 108.25 euros in the past. Additionally, the condition of the coin in this auction is 75 (MBC).

Considering the coin's previous prices and its evolution, as well as its current condition, we can estimate a maximum purchase price for this coin in the next auction. Given that the condition is 75 (MBC), and the historical average auction price is 108.25 euros, we could consider an estimated maximum purchase price around 120 euros.

It is important to note that the final auction price may vary depending on factors such as demand at that specific moment, competition from other bidders, and interest in the coin at that particular auction.