Based on the data provided, we can observe that the coin in question had a starting price of 200 euros in this auction and is in a conservation grade of 80 (MBC+). Additionally, it has been auctioned nine times in the past, always selling, with an average starting price of 458 euros and an average closing price of 594.44 euros.

When analyzing the previous prices of this coin, we can see that it has had a wide price range in previous auctions, with estimates ranging from 30 euros to 1500 euros. However, in the last recorded auction in 2020, the coin was sold for 700 euros with a conservation grade of 95.

Given that the coin is in a conservation grade of 80 (MBC+), and considering the previous prices and the upward trend in closing prices, we could estimate a maximum purchase price of around 800-900 euros for this particular auction. It is important to note that the final price may vary depending on the demand at the auction and other external factors.