Based on the provided data, we can observe that the coin in question has had an average starting price of 70.1 euros and an average selling price of 75.22 euros in previous auctions. Additionally, it has been auctioned a total of 21 times in the past, being sold 10 times and not sold 11 times.

The condition of the coin this time is described as 75 (VF), which means it is in fairly good condition.

When analyzing the coin's previous prices, we can see that it has had price estimates ranging from 20 euros to 250 euros, with selling prices ranging from 12 euros to 150 euros.

Given that the coin will be auctioned in the coming days with a starting price of 60 euros and an estimated price of 100 euros, and considering its condition and historical auction prices, we could estimate a maximum purchase price around 120-130 euros. This estimation is based on previous price trends and the fact that the coin has been sold in the past within that price range.

It is important to note that the final auction price may vary depending on the demand at that specific time, so it is advisable to monitor the auction to adjust the offer accordingly.