To estimate a maximum purchase price for the coin in question, we will consider several factors:

1. Current Condition: The coin has a condition of 70 (VF-). This indicates that it is in an acceptable state, but not of high quality.

2. Historical Prices: By looking at previous auction prices for coins with a similar condition (70), we can see that they have varied. For example:
- In past auctions, coins with a condition of 70 have reached hammer prices of 220, 280, and 210 euros, among others.

3. Average Hammer Price: The average hammer price for this coin is 375.6 euros, but this includes coins of different conditions. For similar conditions, the range seems to be closer to 200-300 euros.

4. Starting Price and Average Starting Price: The current starting price is 175 euros, and the average starting price is 284.84 euros. This suggests that the market is willing to accept higher prices, but there is also moderate competition.

5. Recent Trends: The coin has been auctioned 95 times in the past, with an 89.5% sell-through rate, indicating good demand.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 250 to 300 euros. This is based on the current condition and previous hammer prices for similar coins. If the auction becomes competitive, it could reach the upper end of this range.