Based on the provided data, we can observe that the coin has had an average auction closing price of 169.29 euros in previous auctions. Additionally, it has been auctioned a total of 14 times in the past, with an average starting price of 107.08 euros.

The current condition of the coin is 25 (BC), indicating that it is in a fairly low condition in terms of preservation.

Some previous prices for this coin include a closing price of 150 euros in a 2020 auction, 340 euros in a 2019 auction, and 320 euros in a 2017 auction.

Given that the coin has sold in the past for prices above 300 euros in better preservation conditions, and considering the current low condition, we could estimate a maximum purchase price around 250-300 euros for this coin in the current auction. It is important to note that the final price will depend on the demand at the auction and other factors that may influence buyers' decisions.