Based on the data provided, we can observe that the coin in question has had an average auction price of 91.9 euros in the past. Additionally, it has been auctioned 163 times and has been sold in 135 of those auctions.

The condition of the coin this time is described as '70 (MBC-)', indicating a conservation between Very Fine and Fine.

Taking into account these data, as well as the previous prices of the coin in past auctions, we could estimate a maximum purchase price around 100-110 euros for this coin in the next auction. It is important to consider that factors such as demand at the time of the auction and competition from other bidders can influence the final auction price.