To estimate a maximum purchase price for the coin in question, let's consider several factors:

1. Starting Price: 200 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 75 (MBC), indicating that it is in fairly good shape. This may positively influence its value.
3. Auction History: The coin has been auctioned 2 times in the past, of which it sold 1 time and did not sell 1 time. The hammer price in the previous auction was 130 euros, with a starting price of 60 euros.
4. Average Starting and Hammer Price: Both are 130 euros, suggesting that this is a reference value for the coin in similar conditions.

Given that the current starting price is 200 euros, which is significantly higher than the previous average hammer price (130 euros), it is likely that interest in the coin may not be high enough to reach that starting price.

Taking into account the condition of the coin and the price history, an estimated maximum purchase price could be positioned between the previous average hammer price and a slight increase due to the better condition.

Therefore, an estimated maximum purchase price could be around 150-160 euros. This reflects moderate interest, considering the condition and auction history.