To estimate a maximum purchase price for the coin in question, we can consider several factors based on the provided data:

1. Current Condition: The coin has a condition rating of 30 (BC+). This is relatively low compared to other coins that have been auctioned, which may affect its value.

2. Auction History:
- The average hammer price for coins with a similar condition (30) in the past has been approximately 20-30 euros.
- In previous auctions, hammer prices for coins with a condition of 30 have varied, but many have reached between 12 and 40 euros.

3. Starting Price and Average Starting Price:
- The current starting price is 12 euros, and the average starting price in the past has been 25.9 euros. This suggests that the starting price is relatively low compared to the historical average.

4. Sales Trends:
- Out of the 54 times it has been auctioned, it has sold 31 times, indicating a reasonable sell-through rate. This may influence demand and, therefore, the price.

5. Previous Prices:
- In past auctions, the estimated price for coins with a condition of 30 has been up to 20-30 euros, and some have reached up to 40 euros at auction.

Based on these factors, an estimated maximum purchase price for this coin could be between 20 and 30 euros, considering that the condition is a limiting factor. However, if there is particular interest in this coin or if the auction generates competition, the price could exceed 30 euros, but it is unlikely to reach 40 euros given its condition.

Therefore, a reasonable maximum purchase price could be 30 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially considering the coin's condition (95 - EBC+) and previous auction prices.

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

2. Previous auction prices:
- In the 2020 auction, the coin with a condition of 95 was sold for 40 euros.
- In other auctions, the hammer prices have varied, but the range seems to be between 8 and 50 euros, depending on the condition and demand.

3. Average hammer price: The average hammer price for this coin is 34 euros, which is also a good indicator of the expected value.

4. Recent trends: In the most recent auction (2023), the coin with a condition of 90 was sold for 17 euros, suggesting that interest in well-preserved coins remains.

5. Estimated price: The estimated price for the next auction is 20 euros, which can also serve as a reference.

Taking all these factors into account, an estimated maximum purchase price for the coin with a condition of 95 could be in the range of 40 to 50 euros, as this is a price that has been reached in previous auctions and reflects the good condition of the coin.

Therefore, a reasonable maximum purchase price could be 50 euros.

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

1. Current Condition: The coin has a condition rating of 80 (MBC+), which indicates that it is in relatively good shape, although not the best possible condition.

2. Auction History:
- The average hammer price in previous auctions is 90.88 euros.
- In past auctions, hammer prices have varied significantly, with some reaching up to 250 euros in similar conditions (condition of 95).
- The last auction with a condition of 80 had an estimated price of 20 euros, but the hammer price is not available.

3. Starting Price and Average Starting Price:
- The current starting price is 12 euros, which is quite low compared to the average starting price of 70.44 euros.

4. Sales Trends: Of the 32 times it has been auctioned, it has sold 19 times, indicating a reasonable sales rate.

Based on these factors, an estimated maximum purchase price could be in the range of 80 to 120 euros, considering that the condition is good and that the hammer price history suggests it could reach higher figures in auctions. However, since the starting price is low, it could be a good opportunity to acquire it at a more accessible price.

Therefore, a reasonable maximum purchase price could be 100 euros.

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

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

2. Auction History:
- The average hammer price for similar coins in the past has been 19.56 euros.
- In previous auctions, coins with a condition of 95 have reached hammer prices that varied, but some examples are:
- 22 euros in December 2020.
- 20 euros in September 2022.
- 30 euros in December 2024.

3. Starting Price and Estimated Prices:
- The current starting price is 12 euros, and the estimated price is 20 euros.

4. Sales Trends: The coin has been sold in 45 out of 55 auctions, indicating good demand.

Based on these factors, an estimated maximum purchase price could be in the range of 25 to 30 euros, considering that the condition is high and that similar prices have been reached in previous auctions. Therefore, a reasonable maximum purchase price could be 30 euros.