Based on the data provided, we can observe that the coin in question has had an average starting price of 75.52 euros in previous auctions, with an average closing price of 128.77 euros. The conservation status of the coin has been described as 70 (MBC-), indicating that it is in an acceptable but not excellent condition.

Additionally, several closing prices have been recorded in previous auctions, ranging from 32 euros to 340 euros, depending on the auction date and other factors such as the conservation status.

Given that the starting price this time is 60 euros and considering the upward trend of previous closing prices, as well as the conservation status of the coin, we could estimate a maximum purchase price around 150-180 euros. This estimation is based on the idea that collectors are willing to pay a higher price than the starting price for a coin in good condition and with some historical value.

It is important to note that the final auction price will depend on the demand at that specific moment, so it is advisable to monitor its evolution to adjust the offer accordingly.