Based on the data provided, we can observe that the coin has had an average auction price of 212.49 euros in the past. Additionally, it has been auctioned a total of 56 times, out of which it has been sold 44 times.

Considering that the coin's condition is 75 (VF), and the average auction price has been 212.49 euros, we could estimate a maximum purchase price around that value. However, given that the starting price in this auction is 75 euros, it is likely that the final auction price will not significantly exceed that value.

Therefore, my estimate for the maximum purchase price for this coin in the next auction would be around 220-230 euros. It is important to note that the final price may vary depending on the demand at the auction and other factors that may influence buyers' decisions.