Based on the data provided, we can observe that the coin in question has had varying starting and closing prices in previous auctions. The current condition of the coin is 70 (VF+), indicating that it is not in the best condition, but also not in the worst.

The average starting price in previous auctions was 183.75 euros, while the average closing price was 284.31 euros. Additionally, it has been auctioned a total of 16 times in the past, sold in 13 instances and not sold in 3 instances.

Considering the previous prices of the coin, its current condition, and the fact that it has sold in the majority of previous auctions, we could estimate a maximum purchase price around 300 euros. It is important to note that this is just an estimate and the final price could vary depending on demand in the current auction.