Based on the data provided, we can observe that the coin in question has performed well in previous auctions, with closing prices ranging between 100 and 200 euros. The coin's preservation has remained at a high level, around 95 (UNC-).

Given that the highest estimated closing price has been 200 euros and considering the upward trend in closing prices in previous auctions, we could estimate a maximum purchase price of around 210-220 euros for this coin in the next auction. It is important to note that this is just an estimate and the final price may vary depending on demand and other factors at the auction.