Based on the data provided, we can observe that the coin in question had a starting price in the most recent auction of 35 euros, with a conservation value of 80 (MBC+). Additionally, it has been auctioned a total of 36 times in the past, being sold in 29 occasions and not sold in 7 occasions.

The average starting price of previous auctions has been 38.21 euros, while the average closing price has been 59.48 euros. Regarding the previous prices of this coin, we can see that it has had variations in its starting, estimated, and closing prices throughout past auctions.

Taking all these data into consideration, as well as the trend of previous prices, we could estimate a maximum purchase price for this coin in the next auction around 140-150 euros, considering that the estimated price in the last auction was 150 euros and the closing price was 140 euros. It is important to note that the conservation value of the coin is high (80), which also influences its final price.