Based on the provided data, we can observe that the coin in question has had an average auction closing price of 68.82 euros in previous auctions. Additionally, its current condition is 75 (VF).

Considering that the starting price for the upcoming auction is 25 euros and the historical average starting price is 55.33 euros, we can see that the closing price has consistently been higher than the starting price in most previous auctions.

Given that the coin has sold in the past in a price range from 18 euros to 200 euros, and its current condition is 75 (VF), we could estimate a maximum purchase price around 180 euros.

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