Based on the data provided, we can observe that the coin has had an average auction closing price of 101.22 euros in previous auctions. Additionally, the condition of the coin on this occasion is 75 (MBC).

Considering that the condition of the coin is 75 (MBC) and the average auction closing price in previous auctions has been 101.22 euros, we could estimate a maximum purchase price around 110-120 euros. Since the condition of the coin is not excellent, it is important to take this factor into account when determining the maximum purchase price.

I hope this estimation is helpful for you to participate in the auction. Good luck!