Based on the provided data, we can observe that the coin in question has had an average starting price in previous auctions of approximately 69.33 euros, while the average final price has been around 124.57 euros. The condition of this coin has been described as 75 (VF).

Additionally, several previous prices of this coin have been recorded in past auctions, with starting values ranging from 30 to 125 euros, and final prices ranging from 34 to 340 euros. The condition of the coins auctioned in the past has mostly been high, with conservation values between 80 and 95.

Given that the coin will be auctioned in the coming days with a starting price of 50 euros, and taking into account the historical information from previous auctions as well as the condition of the coin, we could estimate a maximum purchase price of around 150 euros. This price falls within the range of final prices recorded in previous auctions and considers the conservation of the coin as an important factor in its value.