Based on the data provided, we can observe that the coin in question had a starting price of 60 euros in this auction and is in a conservation grade of 75 (MBC). Additionally, it has been auctioned in the past five times, with an average starting price of 123.33 euros and an average closing price of 457.8 euros.

When analyzing the previous prices of this coin, we can see that it has had a wide price range in previous auctions, with closing values reaching up to 1300 euros in the past. However, the most recent closing price was 64 euros.

Given that the conservation grade of the coin is 75 (MBC) and considering the previous prices as well as the most recent closing price, we could estimate a maximum purchase price in this auction around 150-200 euros. It is important to note that the final price may vary depending on the demand at the auction and other factors that may influence buyers' decisions.