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

1. Starting price: 350 euros.
2. Auction history: The coin has been auctioned 15 times, of which it has sold 10 times. This indicates a sell-through rate of 66.67%, which is quite positive.
3. Previous prices: Previous hammer prices for coins of similar condition (80) have varied, but the highest hammer price was 550 euros in March 2024. This suggests there is significant potential to reach high prices in recent auctions.
4. Average hammer price: The average hammer price of 292.3 euros is a good indicator of what buyers are willing to pay on average.
5. Condition: There is no information about the condition of this coin, which may make buyers more cautious. However, most coins in the history have a condition of 80, suggesting that the coin could be in a similar state.

Given that the starting price is 350 euros and considering the auction price history, an estimated maximum purchase price could be positioned between the starting price and the highest previous hammer price.

Taking all these factors into account, an estimated maximum purchase price could be approximately 450 euros. This reflects a balance between the starting price and the hammer price potential based on the auction history.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the previous auction prices and the condition of the auctioned coins.

1. Current starting price: 900 euros.
2. Average auction price in the past: 1195.45 euros.
3. Auction price history:
- 2018-05-31: 950 euros (condition 90)
- 2018-03-08: 950 euros (condition 80)
- 2016-10-19: 800 euros (condition 90)
- 2020-06-24: 1650 euros (condition unknown)
- 2017-06-28: 950 euros (condition unknown)
- 2021-03-09: 1300 euros (condition 95)
- 2021-02-18: 1300 euros (condition 80)
- 2022-03-30: 1700 euros (condition 90)
- 2022-09-27: 1300 euros (condition 90)
- 2023-02-16: 650 euros (condition 80)

4. Price analysis:
- Auction prices have varied between 650 and 1700 euros, with an average of 1195.45 euros.
- The conditions of the auctioned coins have influenced the prices, where higher conditions (90 and 95) tend to have higher auction prices.

5. Estimation:
- Since there is no information about the condition of the current coin, it is prudent to consider an auction price that is in the mid-range of previous prices, while also taking into account that the starting price is 900 euros.
- A reasonable auction price could be between 1200 and 1500 euros, based on the price history and the average auction price.

Estimated maximum purchase price: 1500 euros.

This price reflects a balance between the auction price history and the uncertainty regarding the condition of the current coin.

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

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

2. Previous Auction Prices: By looking at previous auction prices for coins with a similar condition (95), we find that in recent auctions, the hammer prices have been:
- 5000 euros (2023-03-16)
- 3400 euros (2024-03-14)
- 3200 euros (2024-02-14)

3. Average Hammer Price: The average hammer price for this coin is 2276.47 euros, which is also a good indicator of the expected value.

4. Starting Price: The current starting price is 1500 euros, which is relatively low compared to previous hammer prices.

5. Auction Trends: The coin has been auctioned 21 times, with an 85.71% sell-through rate (18 out of 21). This suggests that there is consistent interest in the coin.

Based on these factors, an estimated maximum purchase price could be between 3000 and 4000 euros, considering that the highest recent hammer price was 5000 euros and that the coin's condition is high. However, since the starting price is 1500 euros, it is likely that the final hammer price will be closer to the lower end of this range, but still, it is reasonable to expect that a buyer would be willing to pay up to 4000 euros for it.

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 an acceptable state, but not among the best qualities. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- It has been auctioned 5 times in the past, of which it has sold 3 times. This indicates that there is interest in the coin, but also that there is a 40% chance it has not sold.
- Previous starting and final prices are relevant. For example, in 2019, the coin started at 900 euros and sold for 950 euros, suggesting that the final price may be close to the starting price in recent auctions.

3. Average Starting and Final Prices:
- The average starting price is 840 euros and the average final price is 1016.67 euros. This indicates that, in general, coins of this reference tend to sell for above their starting price.

4. Price Trends:
- The current starting price is 600 euros, which is lower than the average starting price. This could attract more bidders, but it may also indicate that the seller is looking for a quick sale.

5. Comparison with Previous Prices:
- In the most recent auction, the coin sold for 1000 euros with a condition of 70, which is lower than the current condition of 75. This suggests that the price could be higher in this auction.

Taking all these factors into account, an estimated maximum purchase price could be around 950-1100 euros, considering that the condition is better than in the previous auction and that interest in the coin seems to be moderate. A price of 1000 euros could be a reasonable target, given the auction history and the 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 70 (VF-), indicating that it is in an acceptable state, but not among the best qualities. This may influence the price, as coins in better condition tend to reach higher prices.

2. Auction History:
- The coin has been auctioned 5 times in the past, of which it has sold 3 times. This indicates that there is interest in the coin, but also that there is a 40% chance it has not sold.
- Previous hammer prices are relevant. For example, in the 2019 auction, the coin sold for 950 euros with a condition of 80, and in 2024 it was hammered at 1100 euros with a condition of 75. This suggests that the price may fluctuate depending on the condition and market interest.

3. Starting Prices and Average Prices:
- The current starting price is 700 euros, which is lower than the average starting price of 840 euros and the average hammer price of 1016.67 euros. This suggests that the starting price is attractive and could attract more bidders.

4. Price Trends:
- The highest recorded hammer price is 1100 euros, which sets an upper limit for the purchase price.

Based on these factors, an estimated maximum purchase price could be between the average hammer price (1016.67 euros) and the highest hammer price (1100 euros). Given that the current condition is 70, which is lower than the conditions of previous auctions, a reasonable maximum price could be approximately 1000 euros. This reflects a balance between market interest, the condition of the coin, and historical prices.

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 of 75 (MBC), which indicates that it is in fairly good shape, but not the best possible condition. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- It has been auctioned 4 times in the past, of which 3 have sold. This indicates an interest in the coin.
- Previous hammer prices are relevant. For example, in a 2022 auction, a coin with a condition of 70 sold for 1000 euros, and another with a condition of 80 sold for 1600 euros. This suggests that the price can vary significantly depending on the condition.

3. Starting Price and Average Hammer Price:
- The current starting price is 1000 euros, and the average hammer price in the past has been 1433.33 euros. This suggests that the hammer price could be in a similar or higher range than the starting price.

4. Price Trends: Given that the average hammer price has been above the starting price, and considering that the condition of the coin is relatively good (75), it is reasonable to assume that the hammer price could be in a high range.

Based on these factors, an estimated maximum purchase price could be between 1200 and 1600 euros, considering that the condition is slightly lower than that of coins that have sold for higher prices. A price of 1400 euros could be a good benchmark for a competitive offer, given the price history and current condition.

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 90 (EF), indicating that it is in quite good shape. This generally translates to a higher price compared to coins in lower conditions.

2. Auction History:
- The average hammer price for similar coins in the past is 147.24 euros.
- The coin has been auctioned 21 times, of which it has sold 17 times, indicating good demand.
- Previous hammer prices for coins with similar conditions (80-85) have varied, but some have reached up to 75 euros.

3. Starting Price: The current starting price is 200 euros, which is significantly higher than the average hammer price for similar coins. This may indicate that the seller has high expectations, but it could also limit buyer interest.

4. Price Trends: Looking at the hammer prices from previous auctions, it seems that coins in similar conditions have reached hammer prices ranging from 20 to 75 euros, with some exceptional cases.

Given all this, an estimated maximum purchase price could be set in a range that reflects both the condition of the coin and the price history. Considering that the condition is good and the average hammer price is 147.24 euros, a reasonable maximum purchase price could be:

Estimated maximum purchase price: 150-180 euros.

This range takes into account the good condition and the price history, but also considers that the starting price is higher than what has been seen in the past.

To estimate a maximum purchase price for the coin in question, we can analyze 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. Previous Prices:
- The average hammer price in previous auctions is 182.22 euros, suggesting that, on average, coins of this reference have reached prices above their starting price.
- In previous auctions, hammer prices have varied, but there are examples of sales reaching up to 220 euros, indicating a potential for high demand.

3. Starting Price: The current starting price is 150 euros. This is an important benchmark, as starting prices are usually lower than hammer prices.

4. Sales Trends: Since this coin has sold every time it has been auctioned (10 out of 10), this indicates strong demand and consistent interest in the coin.

5. Comparison with Average Prices: The average starting price of 79.44 euros and the average hammer price of 182.22 euros suggest that the coin has good potential for appreciation.

Based on these factors, an estimated maximum purchase price could be in the range of 200 to 220 euros, considering that the condition is good and there is a history of sales in that range. Therefore, a reasonable maximum purchase price could be 210 euros.

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 of 75 (VF), indicating that it is in fairly good shape, although not the best possible condition.

2. Previous Prices:
- In the December 2019 auction, the coin was auctioned with a starting price of 2500 euros and sold for 6500 euros, with a condition of 80.
- In May 2017, the coin was auctioned with a starting price of 4500 euros and sold for 4500 euros, although the condition is not specified.

3. Average Starting and Final Prices: The average starting price is 3000 euros and the average final price is 4500 euros. This suggests that, in general, coins of this reference tend to reach final prices that are significantly higher than the starting price.

4. Auction Trends: Since the coin has sold every time it has been auctioned, this indicates a consistent interest in the coin, which may influence its price.

Based on these factors, we can make an estimation. Given that the current condition is 75 and considering that in the past final prices of up to 6500 euros have been reached for higher conditions, a reasonable maximum purchase price could be between the average final price (4500 euros) and the highest final price (6500 euros).

Therefore, an estimated maximum purchase price could be around 5500 euros. This reflects a balance between the current condition and historical prices, taking into account that the coin is not in the best possible condition.

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 75 (VF), indicating that it is in quite good shape. This generally translates to a higher price compared to coins in lower conditions.

2. Auction History:
- The average hammer price for similar coins in the past is 508.89 euros.
- The coin has been auctioned 10 times, of which it has sold 9 times, indicating good demand.
- Previous hammer prices for coins with similar conditions (70-75) have varied, but the range seems to be between 160 and 350 euros in the most recent auctions.

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

4. Price Trends: Looking at previous hammer prices, it appears that coins with a condition of 70-75 have reached hammer prices ranging from 160 to 350 euros. However, since this coin's condition is 75, it is reasonable to expect that the hammer price will be at the upper end of this range.

5. Final Estimate: Considering all these factors, an estimated maximum purchase price could be around 400-450 euros. This is based on the good condition of the coin and the hammer price history for similar coins.

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

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

1. Current Condition: The coin has a condition of 90 (EF), indicating that it is in quite good shape.

2. Previous Auction Prices:
- In previous auctions, we have seen hammer prices that varied depending on the condition. For example:
- In 2022, a coin with a condition of 90 was auctioned for 1500 euros.
- In 2021, it was auctioned for 1900 euros with a condition of 90.
- In 2020, it was auctioned for 850 euros with a condition of 85.
- In 2019, it was auctioned for 600 euros with a condition of 80.

3. Price Trends:
- The average hammer price for this coin is 1080.84 euros, suggesting that, in general, buyers are willing to pay more than the starting price on many occasions.
- The coin has a starting price of 900 euros in this auction, which is a reasonable starting point.

4. Estimation of Maximum Purchase Price:
- Given that the condition is good (90) and considering the previous auction prices, a maximum purchase price could be in the range of 1500 to 1900 euros, based on previous auctions of coins with similar conditions.

Therefore, an estimated maximum purchase price for this coin could be approximately 1800 euros. This is based on the trend of previous auction prices and the current condition of the coin.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the previous auction prices and the conditions of the auctioned coins.

1. Starting and hammer price: The current starting price is 700 euros, and the average hammer price in previous auctions is 1135.53 euros. This suggests that, in general, coins of this reference tend to sell for a price higher than the starting price.

2. Auction history:
- In previous auctions, hammer prices have varied considerably, with some reaching up to 2600 euros (as in the March 2023 auction).
- The condition of the auctioned coins has influenced the hammer prices. Coins with higher conditions (such as 90 and 95) tend to achieve higher prices.

3. Current condition: In this case, there is no information about the condition of the coin to be auctioned. However, considering that previous conditions have ranged between 75 and 95, and that hammer prices have been high, we can assume that the coin could be in acceptable condition.

4. Maximum price estimation: Given that the average hammer price is 1135.53 euros and considering that some coins have reached significantly higher hammer prices, a reasonable maximum purchase price could be in the range of 1500 to 1800 euros, depending on the actual condition of the coin.

Therefore, an estimated maximum purchase price for this coin could be 1500 euros.

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

1. Starting Price: 1000 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 90 (EF), indicating that it is in very good shape. This generally increases its value compared to coins with lower conditions.
3. Auction History: The coin has been auctioned 2 times in the past and has sold on both occasions. This suggests that there is interest in the coin and that it has an active market.
4. Previous Prices: In the previous auction, the coin was offered with a starting price of 500 euros and was sold for 850 euros, indicating that the market is willing to pay more than the starting price.

Given that the average hammer price for similar coins is 1575 euros and considering that the condition of this coin is better than that of the previous auction, we can estimate that the hammer price could be higher.

Taking all these factors into account, an estimated maximum purchase price could be between 1500 and 1800 euros, depending on the competition in the auction and the interest of collectors. A price of 1800 euros could be a reasonable limit for a competitive bid, given the price history and the condition of the coin.

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

1. Condition: The coin has a condition rating of 75 (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:
- In the past, the coin has been auctioned 4 times and has sold on all occasions, indicating consistent interest in the coin.
- The previous hammer prices are:
- 240 € (2019)
- 360 € (2021)
- 240 € (2022)
- The average hammer price is 397.5 €, suggesting that, in general, buyers are willing to pay more than the starting price.

3. Current Starting Price: The starting price is 250 €, which is slightly higher than the starting price of some previous auctions, but still within a reasonable range.

4. Price Trends: The highest recorded hammer price is 360 €, indicating that there is potential for the coin to sell for a price above the starting price.

Given that the condition is good and considering the price history, an estimated maximum purchase price could be in the range of 360 € to 400 €. This is based on the highest previous hammer price and the consistent interest in the coin.

Therefore, an estimated maximum purchase price could be approximately 400 €.