Based on the provided data, we can observe that the coin in question has had starting and estimated prices ranging from 12 to 110 euros, with final prices ranging from 0 to 110 euros. The conservation grade of the coin in this auction is 75 (MBC).

Taking into account the previous prices of the coin in past auctions, as well as its current conservation grade, we can estimate a maximum purchase price for this coin in the upcoming auction. Considering that the average starting price has been 59.38 euros and the average final price has been 58.8 euros, and considering the current conservation grade of 75 (MBC), we could consider an estimated maximum purchase price around 70-80 euros.

It is important to note that the final auction price may vary depending on buyer demand and other factors, so this estimation is only an approximate reference.