Based on the data provided, we can observe that the coin in question has had an average auction price of 47.87 euros in previous auctions. Additionally, the condition of this coin has been described as '85 (ebc-)'.

Considering that the condition is quite good (85), and the average auction price has been 47.87 euros, we can estimate a maximum purchase price for this coin in the upcoming auction. Given that the coin has been auctioned 130 times in the past and has performed well in terms of price, we could consider a maximum purchase price around 50-55 euros.

Therefore, my estimate for the maximum purchase price for this coin in the next auction would be around 50-55 euros.