Based on the data provided, we can observe that the coin in question has had a varied auction history, with starting and final prices that have fluctuated over the years. The coin's condition is rated at 80 (MBC+), indicating that it is in fairly good condition.

Some relevant auction data from previous years includes:

- In 2011, the coin had an estimated price of 175 euros and was auctioned off at 340 euros with a condition rating of 75.
- In 2014, the coin had a starting price of 300 euros and was auctioned off at 500 euros, with no information on the condition rating.
- In 2016, the coin had estimated and final prices of 455 and 598 euros respectively, with a condition rating of 90.
- In 2016, the coin had an estimated price of 444.4 euros and was auctioned off at 888.8 euros with a condition rating of 30.
- In 2019, the coin had an estimated price of 1453.23 euros, with no information on the final auction price, and a condition rating of 107.
- In 2019, the coin had a starting price of 300 euros and was auctioned off at 850 euros, with a condition rating of 90.
- In 2019, the coin had an estimated price of 500 euros, with no information on the final auction price, and a condition rating of 90.

Given this auction history and considering the coin's condition rating of 80 (MBC+), we could estimate a maximum purchase price around 700-800 euros. It is important to note that the final auction price may vary depending on factors such as demand at the auction and buyers' willingness to bid on the coin.