Based on the data provided, we can observe that the coin has had an average auction closing price of 117.61 euros in previous auctions. Additionally, the condition of this coin has been described as 75 (VF).

Considering that the starting price for the upcoming auction is 40 euros and the historical average starting price is 66.5 euros, we can see that the closing price has consistently been higher than the starting price in previous auctions.

Given that the condition of the coin is 75 (VF), and considering that it has previously closed above 117.61 euros, we could estimate a maximum purchase price around 130-140 euros for this coin in the upcoming auction. It is important to note that this is just an estimate and the final price may vary depending on demand and other factors at the auction.