Based on the data provided, we can observe that the coin has had an average auction closing price of 146.58 euros in previous auctions. Additionally, the condition of this coin is rated at 70 (MBC-).

Considering that the average auction closing price has been 146.58 euros and that the condition of the coin is 70 (MBC-), we could estimate a maximum purchase price around 160-170 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.