Based on the data provided, we can observe that the coin in question has had a starting price of 30 euros in this auction and is in a conservation grade of 70 (MBC-). Additionally, it has been auctioned in the past on several occasions, with closing prices ranging between 125 and 370 euros.

Considering that the average closing price in previous auctions has been 167.5 euros and that the highest estimated price was 500 euros, we could estimate a maximum purchase price for this coin in the current auction around 400 euros, taking into account its conservation and the history of previous prices.

Of course, it is important to consider that the final auction price will depend on various factors, such as the demand at that specific moment, the competition from other bidders, and the interest generated by the coin in question.