Based on the data provided, we can observe that the coin in question had a starting price of 30 euros in this auction, with a conservation grade of 70 (MBC-). Additionally, it has been auctioned seven times in the past, being sold in four of them.

The average starting price of previous auctions has been 45 euros, while the average final price has been 58.25 euros. Regarding the previous prices of this coin, we can see that it has had significant variations in its estimated values, with prices ranging between 25 and 75 euros.

Taking into account these data, as well as the conservation of the coin and its auction history, we could estimate a maximum purchase price around 65-70 euros. It is important to note that this is just an estimate and the final price will depend on various factors, such as demand at the auction and the interest of potential buyers.