Based on the data provided, we can observe that the coin in question has had an average auction closing price of 120.64 euros in previous auctions. Additionally, its condition has been described as 70 (MBC-).

Considering that the coin's condition is relatively good (70), and that the average auction closing price has been 120.64 euros, we could estimate a maximum purchase price around 130-140 euros. It is important to note that this is just an estimate and the final price may vary depending on factors such as demand at the auction and buyers' interest at that specific time.