Based on the provided data, we can observe that the coin in question has had an average starting price of 101.24 euros and an average selling price of 133.4 euros in previous auctions. The conservation of this coin is described as "25 (BC)".

Additionally, a total of 17 auctions have been conducted in the past, with the coin being sold in 15 instances and not sold in 2 instances. It will not be auctioned in the upcoming days.

Analyzing the previous prices of this coin, we can see that it has had a considerable variation in its starting, estimated, and selling prices throughout previous auctions. The conservation assessment has mostly been high, with values around 95.

Given that the current conservation of the coin is 25 (BC) and considering the previous prices as well as the average selling price, we could estimate a maximum purchase price of around 140-150 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 in the auction.