To estimate a maximum purchase price for the coin in question, we can analyze the provided data:

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

2. Starting Price: The starting price is 1600 euros, which serves as a baseline for the auction.

3. Price History:
- The average hammer price in previous auctions is 2559.25 euros.
- Hammer prices in past auctions for coins with similar conditions (80-90) have varied, but there are examples of auctions that have reached up to 8000 euros in exceptional conditions.

4. Price Trends:
- In recent auctions, hammer prices for coins with a condition of 80 have been around 1700 to 2400 euros.
- The last auction with a condition of 85 had a hammer price of 2200 euros, suggesting that the market is willing to pay higher prices for coins in good condition.

5. Estimation: Given that the coin's condition is 80 and considering the price history, a reasonable maximum purchase price could be in the range of 2200 to 2500 euros, taking into account that the average hammer price is 2559.25 euros and that the condition is an important factor.

Therefore, an estimated maximum purchase price for this coin could be 2400 euros.

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 80 (MS+), indicating that it is in relatively good shape, but not among the highest qualities.

2. Previous Auction Prices:
- The average hammer price for similar coins has been 2919.29 euros.
- In previous auctions, coins with a similar condition (80) have reached hammer prices of up to 2300 euros.

3. Starting Price and Estimates:
- The current starting price is 1800 euros, which is below the average hammer price.
- The average starting price for similar coins is 1863.16 euros.

4. Recent Trends: In the most recent auctions, hammer prices for coins with a condition of 80 have been in the range of 3000 euros, suggesting an upward trend.

5. Competition Analysis: Given that there is an auction scheduled in the coming days, there is likely to be interest in the coin, which could drive up the hammer price.

Based on these factors, an estimated maximum purchase price could be around 2500-2800 euros. This is based on the analysis of previous hammer prices and the current condition of the coin. However, it is important to note that the final price may vary depending on the competition in the auction and the interest from collectors.

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

1. Current starting price: 3500 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 80 (MBC+), indicating that it is in fairly good shape, but not the best possible condition.
3. Auction history: The coin has been auctioned once before, with a starting price of 2250 euros and a hammer price of 2300 euros. This suggests that interest in the coin may be moderate, as it sold close to its starting price.
4. Average starting and hammer prices: The average starting price of 2875 euros and the average hammer price of 2300 euros are also important indicators. The hammer price is significantly lower than the current starting price.

Given that the coin has a starting price of 3500 euros, which is considerably higher than the previous hammer price and the average hammer price, it is likely that buyer interest may not be high enough to reach that price.

Taking all these factors into account, an estimated maximum purchase price could be positioned between the average hammer price and a bit more, considering the condition. It might be reasonable to estimate a maximum purchase price of around 2800 to 3000 euros, as this aligns with historical interest and the condition of the coin.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, including the starting price, current condition, and previous auction hammer prices.

1. Starting price: 2500 euros.
2. Current condition: 80 (MBC+).
3. Average hammer price in the past: 5030.1 euros.
4. Previous hammer prices:
- 1301 euros (condition 85)
- 5700 euros (condition 95)
- 9500 euros (no condition data)
- 7500 euros (no condition data)
- 2700 euros (condition 95)
- 2300 euros (no condition data)
- 9000 euros (condition 95)
- 5100 euros (condition 95)
- 5400 euros (condition 85)
- 1800 euros (condition 85)

The current condition of the coin (80) is lower than that of many coins that have been sold in the past, which could influence the hammer price. However, the average hammer price of 5030.1 euros suggests that there is significant interest in this coin.

Since condition is an important factor and considering that most coins with a condition above 85 have reached higher hammer prices, we can estimate a maximum purchase price that takes into account the current condition.

Estimated maximum purchase price:
- Based on the average hammer price (5030.1 euros) and adjusting for the condition (80), we could consider a discount of 20-30% due to the lower condition.
- This would lead us to a range of 3500 to 4000 euros as a reasonable maximum purchase price.

Therefore, an estimated maximum purchase price could be approximately 4000 euros.

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

1. Condition: The coin has a condition rating of 80 (MS+), which is an acceptable level, but not the highest. This suggests that the price should not be the highest of previous sales.

2. Previous auction prices:
- The average hammer price for coins of similar condition (80) has been 3100 euros.
- In previous auctions, hammer prices have varied, but the range has been between 2000 and 5600 euros, depending on demand and other factors.

3. Current starting price: The starting price is 1600 euros, which is below the average starting price of 2112.5 euros. This could indicate a buying opportunity.

4. Sales trends: The coin has sold in 11 of the last 13 auctions, indicating consistent interest in the coin.

5. Proximity of the auction: There is an auction scheduled in the coming days, which may influence demand and price.

Based on these factors, an estimated maximum purchase price could be in the range of 2500 to 3000 euros. This is based on the fact that, although the starting price is low, the condition and previous hammer prices suggest that the coin could reach a higher price at auction.

Therefore, a reasonable maximum purchase price could be 2800 euros.

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 90 (EF), which is quite good, although lower than some coins that have been sold in the past with a condition of 95 or 100.

2. Historical Prices:
- The average hammer price from previous auctions is 3094.44 euros.
- Previous auctions with a condition of 95 have reached hammer prices of up to 6000 euros (in the case of the auction on 2022-03-17).
- The last auction with a condition of 95 had a hammer price of 4200 euros (2023-03-16).

3. Starting Price and Estimates:
- The current starting price is 2500 euros, which is a reasonable starting point.
- The estimated price for this auction is 3500 euros, indicating that the coin is expected to reach a price higher than the starting price.

4. Sales Trends:
- Out of the 13 times it has been auctioned, 11 have been sold, indicating good demand.

5. Comparison with Previous Prices:
- The condition of 90 is lower than the conditions of 95 and 100 that have reached higher prices, so the hammer price should not significantly exceed 4200 euros.

Taking all these factors into account, an estimated maximum purchase price for this coin could be around 3800-4000 euros. This is based on the current condition, previous hammer prices, and demand trends.

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

1. Starting Price: 3000 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 80 (VF+), which is an acceptable level, but not among the highest. This may influence the price, as coins in better condition tend to reach higher prices.
3. Auction History:
- It has been auctioned 2 times in the past, of which it sold 1 time and did not sell 1 time.
- The average hammer price in previous auctions was 3200 euros, indicating that there is interest in the coin at prices close to this value.
4. Previous Prices:
- In the May 2022 auction, the coin sold for 3200 euros with a condition of 85, which is better than the current one.
- In the December 2021 auction, the estimated price was 2500 euros, but it did not sell.

Given that the average hammer price is 3200 euros and considering that the current condition is slightly lower than that of the last sale, an estimated maximum purchase price could be in a range between the starting price and the average hammer price.

Taking all these factors into account, an estimated maximum purchase price could be around 3000 to 3200 euros. This is based on the interest shown in previous auctions and the condition of the coin.

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 90 (EF), indicating that it is in quite 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 is 6150.08 euros.
- The last auction of a coin with a condition of 95 reached a hammer price of 30000 euros, indicating a strong market for high-quality coins.
- Previous auctions with conditions of 85 and 90 have had hammer prices that varied, but overall, the prices have been quite competitive.

3. Starting Price and Average Starting Price:
- The current starting price is 3500 euros, which is above the average starting price of 2792.86 euros. This suggests that the seller is confident that the coin will fetch a good price.

4. Market Trends: Given that the coin has sold in the past within a price range that varies considerably, and considering that there has been an increase in hammer prices at recent auctions, it is reasonable to assume that interest in this coin may be high.

Based on these factors, an estimated maximum purchase price could be in the range of 7000 to 8000 euros. This is based on the average hammer price and the condition of the coin, as well as the trend of increasing hammer prices in recent auctions.