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

1. Current Condition: The coin has a condition rating of 95 (EF+), indicating that it is in very good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Current Starting Price and Previous Prices: The current starting price is 1500 euros. In previous auctions, the average hammer price has been 1219.9 euros, suggesting that the current starting price is above the average hammer price.

3. Sales History: The coin has been auctioned 30 times, of which it has sold 29 times. This indicates high demand and a good sales history, which may justify a higher price.

4. Previous Hammer Prices: Looking at previous hammer prices for coins with a similar condition (95), the highest price was 2100 euros in March 2019. This suggests that there is potential to reach higher prices in the future.

5. Recent Trends: In the most recent auction, the hammer price was 1900 euros for a coin with a condition of 80, indicating that the market is willing to pay more for higher quality coins.

Based on these factors, an estimated maximum purchase price for this coin could be between 1800 and 2100 euros, considering that the condition is high and there is a price history that supports this estimate. A price of 2000 euros could be a reasonable target, given the market context and the quality of the coin.