Based on the data provided, we can observe that the coin in question has had an average auction closing price of 41.39 euros in previous auctions. Additionally, the condition of the coin on this occasion is 85 (ebc-).

Considering that the condition is good but not excellent, and that the historical average auction closing price has been 41.39 euros, we could estimate a maximum purchase price of around 45-50 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 closing price.