Based on the provided data, we can see that the coin in question had a starting price of 25 euros in this auction and is in a conservation grade of 70 (MBC-). Additionally, it has been auctioned five times in the past, with an average starting price of 12 euros and an average closing price of 47 euros.

Looking at the previous prices of this coin, we can see that in the last recorded auction in November 2020, the coin reached a closing price of 95 euros with a conservation grade of 70 (MBC-). In previous auctions, closing prices have ranged between 8 and 40 euros.

Given that the coin is in a conservation grade of 70 (MBC-) and considering the history of previous closing prices, as well as the starting price in this auction, we could estimate a maximum purchase price around 100 euros. This takes into account the upward trend in closing prices and the relatively good conservation of the coin.