Based on the data provided, we can observe that the coin in question has had a starting price in this auction of 60 euros and is in a conservation grade of 70 (MBC-). Additionally, it has been auctioned in the past six times, with an average starting price of 141.67 euros and an average closing price of 246.67 euros.

Analyzing the previous prices of this coin in past auctions, we can see that it has had a fairly wide price range, with estimates ranging from 150 euros to 400 euros, depending on the conservation and other factors.

Given that the current conservation grade of the coin is 70 (MBC-), and considering the previous prices and the starting price in this auction, we could estimate a maximum purchase price around 200-250 euros. It is important to consider that the final price will depend on the demand in the auction and other potential buyers interested in the coin.