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 80 (MBC+), 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 this coin in the past is 494.09 euros.
- In previous auctions, hammer prices have varied, but there are examples of sales exceeding 700 euros, especially in similar or better conditions.

3. Starting Price and Average Starting Price:
- The current starting price is 300 euros, which is slightly higher than the average starting price of 250.31 euros. This may indicate an expectation of a higher hammer price.

4. Recent Trends: In the most recent auctions, there have been sales reaching significantly high prices, such as 2400 euros in a previous auction with a condition of 95.

5. Estimation Based on Condition and Previous Prices: Given that the coin's condition is 80 and considering that in the past it has reached hammer prices of up to 750 euros in similar conditions, we can estimate that the maximum purchase price could be in a high range.

### Final Estimation
Taking all these factors into account, an estimated maximum purchase price for this coin could be 700 to 800 euros. This is based on the hammer price history and the current 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 of 75 (MBC), indicating that it is in fairly good shape, but not the best possible condition.

2. Auction History:
- The average hammer price for coins of similar condition (75) has been approximately 220-300 euros in previous auctions.
- In the most recent auctions, the hammer price has varied, but it has reached up to 950 euros in an auction with a condition of 95, indicating that the value can increase significantly with better condition.

3. Starting Price and Average Hammer Price:
- The current starting price is 150 euros, and the average hammer price in the past has been 300.94 euros, suggesting there is potential for an increase in the hammer price.

4. Sales Trends: The coin has been sold in 19 out of 20 auctions, indicating good demand.

5. Comparison with Previous Prices:
- In previous auctions with a condition of 75, hammer prices have ranged from 175 to 300 euros.

Based on these factors, an estimated maximum purchase price for the coin could be in the range of 300 to 350 euros. This is based on the historical hammer price data 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 other buyers.

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

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

2. Previous Auction Prices:
- Auction prices for coins with similar conditions (around 75-85) have varied, but there are examples of auctions reaching up to 450 euros (such as in the auction on 2020-10-21).
- The average auction price for all auctions is 418.94 euros, suggesting that, in general, coins of this reference tend to sell for relatively high prices.

3. Auction Trends:
- The coin has been auctioned 21 times, of which 18 have sold. This indicates a consistent interest in the coin.
- The average starting price is 222.78 euros, which is also an indicator of demand.

4. Comparison with Starting and Auction Prices:
- The coin has a starting price of 200 euros, which is lower than the average starting price and the average auction price. This could indicate that there is potential for the auction price to be higher.

5. Estimation:
- Given that the condition is good and considering previous auction prices, an estimated maximum purchase price could be in the range of 400 to 500 euros, based on the historical behavior of coins with similar conditions.

Therefore, an estimated maximum purchase price for this coin could be approximately 450 euros.

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

1. Current starting price: 475 euros.
2. Current condition: 80 (MBC+), which is quite a good condition.
3. Auction history:
- In November 2022, the coin was auctioned with a starting price of 250 euros and an estimated price of 325 euros, but it did not sell.
- In September 2024, it will be auctioned with a starting price of 400 euros and an estimated price of 600 euros, with a condition of 95 (very good).

4. Average starting price: 375 euros, indicating that the current starting price (475 euros) is above the historical average.

5. Times sold: It has only been sold once in the past, which may indicate that there is less demand or interest in this particular coin.

Given that the current condition is good (80) and considering the starting price and auction history, an estimated maximum purchase price could be positioned between the current starting price and the estimated price of the next auction.

Taking all these factors into account, a reasonable maximum purchase price could be around 500 to 550 euros. This allows for some competition in the auction, but also considers that interest may not be very high given the sales history.

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 fairly good shape, but not the best possible condition.

2. Auction History:
- It has been auctioned 6 times in the past, of which 5 have sold. This indicates a consistent interest in the coin.
- The average starting price in previous auctions is 248.37 euros, and the average hammer price is 492.18 euros. This suggests that, in general, buyers are willing to pay a considerably higher price than the starting price.

3. Previous Prices:
- In the 2018 auction, the coin sold for 380 euros with a condition of 90.
- In 2020, it sold for 460 euros, also with a condition of 90.
- The 2015 auction had a hammer price of 1155.92 euros, but this seems to be an exceptional case, as the starting price was very high.

4. Condition Comparison: A condition of 80 is lower than the conditions of 90 in previous auctions that achieved hammer prices of 380 and 460 euros. This suggests that the hammer price for this coin could be lower than those values.

5. Estimation: Given that the average hammer price is 492.18 euros and considering that the current condition is lower than the conditions that achieved higher prices, an estimated maximum purchase price could be in a lower range.

Taking all these factors into account, an estimated maximum purchase price for this coin could be around 350 to 400 euros. This reflects a balance between the historical interest in the coin and its current condition.

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 85 (MBC+/EBC-), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Historical Prices: By looking at previous auction prices for coins with similar conditions (85 and 80), we can see that the hammer price has varied but has reached significant figures. For example:
- In 2020, a coin with a condition of 85 was auctioned for 280 euros.
- In 2022, a coin with a condition of 85 was auctioned for 400 euros.
- In 2023, a coin with a condition of 95 was auctioned for 600 euros, indicating that the value may increase with better condition.

3. Starting Price and Average Hammer Price: The current starting price is 300 euros, and the average hammer price in the past has been 306.06 euros. This suggests that the hammer price could be in a similar or slightly higher range.

4. Recent Trends: In the most recent auctions, hammer prices have shown a trend of increasing, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price could be in the range of 400 to 450 euros, considering that the coin is in good condition and that hammer prices have been higher in recent auctions. This also takes into account the possibility that other bidders may be interested in the coin, which could drive up the final price.

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 80 (MBC+), indicating that it is in relatively good shape. This can positively influence its price.

2. Current Starting Price and Previous Prices: The current starting price is 400 euros. In previous auctions, hammer prices have varied, but there are examples of hammer prices exceeding 300 euros, even reaching 860 euros in one case.

3. Price Trends: The average hammer price in previous auctions is 337.06 euros, suggesting that, in general, coins of this reference tend to sell for above their starting price.

4. Sales History: Out of the 26 times it has been auctioned, 19 have resulted in sales, indicating good demand for this coin.

5. Condition of Previous Sales: Coins with similar conditions (80 and 85) have had hammer prices ranging from 270 to 420 euros in recent auctions.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 400 to 500 euros, considering that the starting price is 400 euros and there are precedents of higher hammer prices in similar conditions.

Therefore, a reasonable maximum purchase price could be 450 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, including auction history and conservation conditions.

1. Current Conservation: The coin has a conservation grade of 70 (VF-), indicating a medium state of preservation. This is important because the price of coins usually increases with better conservation.

2. Price History:
- The average hammer price in previous auctions is 409.17 euros.
- The last auction with a similar conservation grade (70) had a hammer price of 300 euros.
- In previous auctions, hammer prices for coins with a conservation grade of 70 have varied, but they have generally sold between 220 and 380 euros.

3. Starting Price: The current starting price is 300 euros, which is a reasonable starting point.

4. Auction Trends: The coin has been auctioned 13 times, of which 12 have sold. This indicates good demand and consistent interest in the coin.

5. Maximum Price Estimate: Given that the average hammer price is 409.17 euros and considering that the conservation is 70, a maximum purchase price could be set in a range that reflects both demand and conservation.

Taking all these factors into account, an estimated maximum purchase price could be approximately 400 euros. This is based on the price history, current conservation, and trends from previous auctions.

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

1. Current Condition: The coin has a condition of 85 (ebc-), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Historical Prices: By looking at previous auction prices for coins with similar conditions, we can see that:
- In past auctions, coins with a condition of 85 have reached hammer prices of up to 400 euros.
- The last auction with a condition of 85 had a hammer price of 495 euros.

3. Starting Price and Average Price: The current starting price is 425 euros, which is above the average starting price of 270.09 euros and the average hammer price of 307.05 euros. This suggests that there is an expectation for the coin to sell at a higher price.

4. Recent Trends: In the most recent auctions, hammer prices have been on the rise, which could indicate a positive trend in the value of this coin.

Based on these factors, an estimated maximum purchase price could be around 450-500 euros, considering that the highest hammer price for a coin of similar condition was 495 euros. This also takes into account the current starting price and the trend of increasing hammer prices.

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

1. Current Condition: The coin has a condition of 80 (MS+), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Historical Prices: By looking at previous auction prices for coins with similar conditions, we can see that:
- In past auctions, coins with a condition of 80 have reached hammer prices of up to 300 euros (for example, in the auction on 2019-01-24).
- Coins with a condition of 95 have reached hammer prices of up to 460 euros (as in the auction on 2023-01-31).

3. Starting Price and Average Hammer Price: The current starting price is 325 euros, and the average hammer price in the past has been 288.75 euros. This suggests that the starting price is reasonable and could attract bidders.

4. Recent Trends: In the most recent auctions, hammer prices have shown a trend of being higher, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price could be in the range of 400 to 460 euros, considering that the condition is good and there is potential interest in the coin. Therefore, a reasonable maximum purchase price could be 450 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 of 80 (MS+), which indicates that it is in relatively good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Historical Prices: By looking at previous auction prices for coins with similar conditions, we can see that:
- In past auctions, coins with a condition of 80 have reached hammer prices of up to 440 euros (as seen in the auction on 2017-10-18).
- The trend of hammer prices for conditions ranging from 80 to 90 has been between 250 and 440 euros.

3. Starting Price and Average Hammer Price: The current starting price is 350 euros, and the average hammer price in the past has been 351.13 euros. This suggests that the starting price is reasonable and that there is a good chance it will be met or exceeded in the auction.

4. Recent Trends: In the most recent auctions, hammer prices have ranged from 440 to 700 euros for similar conditions, indicating an increase in interest and value for these coins.

Based on these factors, an estimated maximum purchase price for this coin could be between 400 and 500 euros, considering that the condition is good and there is a price history to support this estimate. However, given the starting price of 350 euros, bidders may be willing to pay a bit more, especially if there is interest in the coin.

Therefore, a reasonable maximum purchase price could be 450 euros.

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

1. Current Condition: The coin has a condition rating of 80 (MBC+). This is an important factor, as coins in better condition tend to reach higher prices.

2. Auction History:
- In the past, the coin has been auctioned 4 times and has sold on all occasions.
- The hammer prices have varied, with a low price of 320 euros (in condition 70) and a high price of 600 euros (in condition 95).
- The average hammer price has been 430 euros.

3. Starting Price and Estimates:
- The current starting price is 300 euros, which is below the average hammer price of 430 euros.
- The estimated price for this auction is 320 euros, which aligns with previous hammer prices for similar conditions.

4. Price Trends:
- The trend shows that as the condition improves, the hammer price also tends to increase. The last auction with a condition of 95 reached 600 euros, indicating that there is a market willing to pay more for coins in better condition.

Based on these factors, an estimated maximum purchase price for the coin with a condition of 80 could be in the range of 400 to 500 euros, considering that the average hammer price is 430 euros and that the condition is slightly lower than coins that have reached higher prices.

Therefore, a reasonable maximum purchase price could be 450 euros.