Based on the data provided, we can observe that the coin in question has had an average auction closing price of 297.42 euros in previous auctions. Additionally, the current condition of the coin is 70 (VF-).

Considering that the condition of the coin is relatively good and that the average auction closing price in previous auctions has been 297.42 euros, we could estimate a maximum purchase price around that value or slightly higher.

Given that the starting price in this auction is 150 euros, and considering the upward trend in previous closing prices, an estimated maximum purchase price for this coin could be around 320-350 euros. This takes into account the condition and historical closing prices.

It is important to note that the final auction price will depend on the demand at that specific moment, so it is advisable to monitor the bidding evolution to adjust the offer accordingly.