Based on the data provided, we can observe that the coin in question has had an average auction price of 134.67 euros in previous auctions. Additionally, its current condition is 70 (VF-).

Considering that the coin's condition is relatively good and the average auction price has been 134.67 euros, we could estimate a maximum purchase price around that value or slightly higher, taking into account that the coin will be auctioned in the coming days.

Therefore, an estimated maximum purchase price for this coin could be around 140-150 euros. It is important to note that the final auction price will depend on the demand at that specific moment and other factors that may influence the bidding.