Based on the data provided, we can observe that the coin has had an average auction closing price of 52.4 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 that the average auction closing price in previous auctions has been 52.4 euros, we could estimate a maximum purchase price around 55-60 euros for this coin in the next auction. It is important to consider that factors such as demand at the time of the auction and the availability of interested buyers can influence the final price of the coin.