Based on the provided data, we know that the coin is in a Very Fine condition (75 - MBC) and has been auctioned once in the past, selling for an average price of 45 euros. Considering the coin's medium quality condition and the previous auction sale price of 45 euros, we could estimate a maximum purchase price of around 50-55 euros for this coin in the next auction. It is important to consider that the final price may vary depending on the demand at the time of the auction and other factors that may influence the valuation of the coin.