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

1. Current starting price: 250 euros.
2. Auction history: The coin has been auctioned 10 times and has sold on all occasions, indicating good demand.
3. Previous prices:
- The average hammer price in the past has been 180.5 euros.
- In recent auctions, hammer prices have reached up to 320 euros (in 2022) and 290 euros (in 2014).
4. Condition: There is no information on the current condition, but in previous auctions, conditions have varied, with some coins reaching high prices despite not having a specified condition value.

Given that the starting price is 250 euros and considering that in previous auctions hammer prices have exceeded this, an estimated maximum purchase price could be in the range of 300 to 350 euros, depending on the competition in the auction and the interest of collectors.

Therefore, an estimated maximum purchase price could be 350 euros.

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

1. Starting Price: 150 euros.
2. Auction History: The coin has been auctioned 15 times, of which it has sold 13 times. This indicates good demand.
3. Average Hammer Price: 109.85 euros, which is a good indicator of the coin's real market value.
4. Previous Prices:
- In 2023, it was auctioned with a starting price of 120 euros and hammered down at 270 euros, indicating potential for a high hammer price.
- In other auctions, hammer prices have varied, but there are examples of hammer prices exceeding the starting price.

5. Condition: There is no specific information about the condition of this coin, which may make its value more uncertain. However, the price history shows that it has reached high values in the past.

Given that the starting price is 150 euros and considering the hammer price history, an estimated maximum purchase price could be positioned in a range between the average hammer price and the highest recorded hammer price.

Estimated Maximum Purchase Price: It may be reasonable to consider a maximum purchase price of around 250-300 euros, given the observed hammer price potential in previous auctions and the demand that the coin seems to have. This is based on the fact that it has reached hammer prices of up to 270 euros in the past.

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

1. Current starting price: 350 euros.
2. Auction history: The coin has been auctioned 7 times and has sold on all occasions, indicating a constant interest in the coin.
3. Previous prices:
- In 2019, it sold for 440 euros with a grade of 95.
- In 2015, it sold for 420 euros, although the grade is not specified.
- In other auctions, the hammer prices were significantly lower, suggesting that the coin's grade influences the price.

4. Average hammer price: 273.43 euros, indicating that, in general, coins of this reference tend to sell below the current starting price.

5. Grade: There is no information about the grade of the coin to be auctioned, which introduces uncertainty. However, the starting price is considerably higher than the average hammer price.

Given that the starting price is 350 euros and considering that the average hammer price is 273.43 euros, an estimated maximum purchase price could be positioned between the average hammer price and the starting price, taking into account the possibility that the grade is good.

Estimated maximum purchase price: It could be reasonable to consider a maximum purchase price of around 400 euros, as it is slightly higher than the average hammer price and below the starting price, which could be attractive to a buyer looking for a good opportunity.

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

1. Starting Price: 300 euros. This is the initial price expected to be obtained at the auction.

2. Auction History: The coin has been auctioned 7 times, of which it has sold 6 times. This indicates good demand and consistent interest in the coin.

3. Average Hammer Price: 243 euros. This is the average price at which the coins have sold in the past, which can be a good indicator of the coin's real value.

4. Condition: There is no information about the condition of this coin, which may complicate the estimation. However, in previous auctions, some coins with a condition of 70 have sold for prices ranging between 26 and 30 euros, suggesting that condition may influence the price.

5. Previous Prices: In the past, hammer prices have varied significantly, from 12 euros to 460 euros. The highest price (460 euros) was recorded in an auction where the starting price was 200 euros, indicating that there is potential for this coin to reach a high price if there is enough interest.

Given that the starting price is 300 euros and considering the average hammer price of 243 euros, an estimated maximum purchase price could be set in a range above the average price, but not as high as the starting price, especially since there is no information about the condition.

Estimated Maximum Purchase Price: It may be reasonable to estimate a maximum purchase price around 350-400 euros, assuming there is sufficient interest in the coin and that condition is not a limiting factor. This allows for a margin above the starting price, but also takes into account the history of hammer prices.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, including starting prices, hammer prices, and the conditions of similar coins auctioned in the past.

1. Current starting price: 150 euros.
2. Average hammer price in the past: 123.03 euros.
3. Previous hammer prices:
- In recent auctions, hammer prices have varied significantly, reaching up to 500 euros in a March 2023 auction.
- Most hammer prices are in the range of 70 to 240 euros, depending on the condition.

4. Condition: There is no information about the condition of this coin, which may complicate the estimation. However, it can be observed that coins with higher conditions (above 80) tend to achieve higher hammer prices.

5. Price trends:
- Coins with a starting price of 150 euros have had hammer prices that vary, but generally, higher hammer prices have been seen in coins with conditions of 80 or more.
- In the case of the March 2023 auction, a coin with a starting price of 150 euros reached a hammer price of 500 euros, indicating that there is potential for a high hammer price.

### Estimation of the maximum purchase price:
Given that the starting price is 150 euros and considering that significantly higher hammer prices have been achieved in the past, a reasonable maximum purchase price could be in the range of 250 to 300 euros, assuming the coin has an acceptable condition and there is interest in the auction.

Therefore, an estimated maximum purchase price could be approximately 300 euros.

To estimate a maximum purchase price for the coin that is going to be auctioned, we can analyze the provided data, including previous hammer prices and the current starting price.

1. Current starting price: 400 euros.
2. Hammer price history:
- Previous hammer prices varied significantly, with some reaching up to 750 euros in recent auctions.
- The average hammer price in the past has been 163.09 euros, but there have been cases where much higher prices were reached, such as 500 euros and 750 euros.

3. Condition: There is no information about the condition of this coin, which may influence its value. However, in previous auctions, coins with similar conditions have reached high hammer prices.

4. Price trends:
- In the most recent auctions, hammer prices have shown an increase, suggesting that demand for this coin may be growing.
- The estimated price for the current auction is 1000 euros, indicating expectations that the coin could reach a high price.

5. Analysis of previous prices:
- The most recent auction with a starting price of 400 euros had a hammer price of 750 euros, suggesting that this could be a good reference point.

Based on these factors, an estimated maximum purchase price could be between 600 and 800 euros, considering that the starting price is 400 euros and there are precedents of high hammer prices in the past. This also takes into account the possibility that the coin may be valued higher in this auction due to the lack of information about its condition and the increasing trend in hammer prices.

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 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 Listing Price and Previous Prices: The current listing price is 100 euros. The average hammer price in previous auctions is 126.98 euros, suggesting that similar coins have reached prices above the listing price.

3. Sales History: The coin has been auctioned 63 times, of which 57 have been successful sales. This indicates good demand and consistent interest in this reference.

4. Previous Hammer Prices: By observing the previous hammer prices for coins with similar conditions (95 or close), we can see that they have reached hammer prices that vary, but some have exceeded 200 euros in recent auctions.

5. Recent Trends: In the most recent auctions, hammer prices for coins of similar condition have been 130 euros or more, suggesting that interest and value for these coins are on the rise.

Based on these factors, an estimated maximum purchase price for this coin could be between 150 and 200 euros, considering that the average hammer price is 126.98 euros and that the condition is high. Therefore, a reasonable maximum price could be 180 euros.

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

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

2. Starting Price: The starting price is 600 euros. This is a good starting point, but not necessarily the final price.

3. Auction History:
- The average hammer price for similar coins is 320.2 euros, but this can vary significantly depending on the condition.
- In the past, coins with similar conditions have reached hammer prices that exceed the current starting price. For example, in previous auctions, coins with conditions of 85 have sold for 700 euros, while others sold for lower prices but with inferior conditions.

4. Price Trends: By observing the hammer prices of coins with conditions ranging from 80 to 95, we can see a wide range. Coins in similar conditions have reached hammer prices ranging from 240 euros to 800 euros.

5. Final Estimate: Given that the coin has a condition rating of 95 and considering the history of hammer prices, an estimated maximum purchase price could be between 800 and 1000 euros. This is based on the fact that coins in similar conditions have achieved high hammer prices in the past.

Therefore, an estimated maximum purchase price for this coin could be 800 to 1000 euros.

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

1. Current starting price: 1500 euros.
2. Auction history: The coin has been auctioned 16 times and has sold on all occasions, indicating consistent demand.
3. Average starting and hammer price: The average starting price is 433.85 euros and the average hammer price is 595.69 euros. This suggests that, in general, coins of this reference tend to sell for below the current starting price.
4. Previous prices: The hammer prices in previous auctions varied, but there are examples of hammer prices reaching up to 1250 euros (in 2015). However, there are also lower hammer prices, such as 110 euros and 150 euros in previous auctions.

Since there is no information about the condition of the current coin, it is difficult to make an accurate estimate. However, considering that the starting price is significantly higher than previous hammer prices, and that the average hammer price is 595.69 euros, a reasonable maximum purchase price could be in the range of 800 to 1000 euros, depending on the buyer's perception of the quality and demand for the coin.

Therefore, an estimated maximum purchase price could be 1000 euros. This allows the buyer to take into account the possibility that the coin may not reach the starting price and that the price history suggests a lower range.

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

1. Current Condition: The coin is in a condition of 90 (EF), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins in lower conditions.

2. Previous Prices: By looking at previous auction prices for coins with similar conditions (EF or close), we can see that auction prices have varied. For example:
- In previous auctions, coins with a condition of 85 have sold for around 85-150 euros.
- Coins with a condition of 90 have reached auction prices of up to 270 euros.

3. Starting Price and Average Hammer Price: The current starting price is 200 euros, and the average hammer price for this coin in the past has been 86.06 euros. However, given that the condition is high, it is reasonable to expect that the hammer price will be above the average.

4. Auction Trends: The coin has been auctioned 106 times, with a sell-through rate of 91.5%. This suggests that there is consistent interest in this coin, which may increase its value at auction.

Based on these factors, an estimated maximum purchase price for this coin could be between 250 and 300 euros, considering its good condition and market interest. This would allow a competitive buyer at the auction, given the historical hammer prices for similar coins.

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 starting price.

1. Current starting price: 350 euros.
2. Auction price history:
- Previous auction prices varied significantly, but there are some standout auction prices:
- 650 euros (2019-05-23, condition 95)
- 480 euros (2018-10-17, condition 100)
- 450 euros (2019-12-11, condition 95)
- 350 euros (2019-10-17, condition 95)
- 270 euros (2019-10-17, condition 95)
- 220 euros (2022-10-19, condition 90)
- 260 euros (2023-03-16, condition 95)
- 280 euros (2023-03-01, condition 95)

3. Condition analysis: The condition of the current coin is not specified, which complicates the estimation somewhat. However, by observing the auction prices of coins with high conditions (95 and 100), we can infer that the auction price could be significantly higher if the condition is good.

4. Maximum purchase price estimation:
- Given that the starting price is 350 euros and considering that in the past auction prices have reached up to 650 euros for high-condition coins, a reasonable maximum purchase price could be in the range of 400 to 500 euros, assuming the coin has an acceptable condition.

Therefore, an estimated maximum purchase price could be approximately 500 euros. This is based on the auction price history and the current starting price.

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

1. Starting price: 400 euros.
2. Auction history: The coin has been auctioned 10 times and has sold on all occasions, indicating good demand.
3. Average starting price: 114.44 euros.
4. Average hammer price: 209.9 euros.
5. Previous prices: Hammer prices have varied considerably, with a maximum of 440 euros in the 2022 auction and a minimum of 24 euros in 2016.

Since there is no information about the condition of the current coin, it is difficult to make an accurate estimate. However, we can observe that in previous auctions, hammer prices have fluctuated, but the highest price (440 euros) was reached in a recent auction with a condition rating of 95.

### Analysis of previous prices:
- The highest auction (440 euros) was conducted with a condition rating of 95.
- The lowest auction (24 euros) was conducted with an unspecified condition.
- Most hammer prices are below 300 euros, but there are a couple of exceptions that exceed that figure.

### Estimation:
Given that the starting price is 400 euros and considering that the average hammer price is 209.9 euros, it is reasonable to assume that the hammer price could be in a higher range due to demand and sales history.

Estimated maximum purchase price: It could be between 300 and 450 euros, considering that the starting price is 400 euros and that there have been recent sales exceeding 400 euros. A prudent maximum purchase price could be 450 euros, given the auction history and observed demand.

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. Current starting price: 300 euros.
2. Previous auction prices:
- The highest auction was 1200 euros in 2018 with a condition of 100.
- Other relevant auction prices include 320 euros in 2023 with a condition of 95 and 260 euros in 2022 with a condition of 95.
3. Condition of the coin: No information is provided about the current condition, which makes the estimation more complicated. However, we can observe that coins with higher conditions tend to reach higher auction prices.

Given that the starting price is 300 euros and considering that significantly higher auction prices have been reached in the past, especially for coins in good condition, an estimated maximum purchase price could be in the range of 400 to 600 euros, depending on the demand and the condition of the coin in the current auction.

Therefore, an estimated maximum purchase price could be approximately 600 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: 300 euros.
2. Condition: The coin has a condition rating of 90 (EF), indicating that it is in very good shape.
3. Auction history: The coin has been auctioned 3 times and has sold on all occasions, suggesting a steady demand.
4. Average hammer price: 466.67 euros, which is significantly higher than the current starting price.
5. Previous prices: In past auctions, hammer prices have varied, but the last hammer price was 320 euros, which is a good indicator of its market value.

Given that the condition is high and the average hammer price is considerably above the starting price, it can be estimated that the maximum purchase price could be in a higher range than the starting price.

Taking all these factors into account, an estimated maximum purchase price could be between 400 and 500 euros, considering that the average hammer price has been 466.67 euros and that the condition of the coin is quite good.

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 based on the provided data:

1. Current starting price: 300 euros.
2. Coin condition: 85 (ebc-), which is a fairly good condition, although not the best.
3. Auction history:
- In 2020, the coin was auctioned with a starting price of 600 euros and sold for 850 euros, with a condition of 95.
- In 2021, it was auctioned with an estimated price of 500 euros and sold for 400 euros, with a condition of 80.

4. Average starting and final prices: The average starting price is 450 euros and the average final price is 750 euros.

Given that the condition of the current coin (85) is lower than that of the 2020 auction (95) but higher than that of 2021 (80), we can infer that the final price should be somewhere in between the previous final prices, adjusted for condition.

### Estimation:
- The final price of the coin in 2020 was 850 euros, and in 2021 it was 400 euros.
- Since the current condition is better than that of 2021 but worse than that of 2020, we could estimate a final price in a range between 500 and 750 euros.

### Conclusion:
Taking all these factors into account, an estimated maximum purchase price for the coin could be around 600 to 700 euros. This is based on the auction history and the current condition of the coin.

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 (MS+), indicating that it is in good condition. This generally increases its value compared to coins with lower conditions.

2. Auction History: The coin has been auctioned 3 times in the past and has sold on all occasions. This suggests that there is consistent interest in the coin, which can positively influence its price.

3. Previous Hammer Prices: The previous hammer prices are 360 and 400 euros for coins with a condition of 70. Since the current condition is better (80), it is reasonable to expect that the hammer price will be higher than these values.

4. Average Hammer Price: The average hammer price of 686.67 euros is an important indicator. Although this value may include coins of different conditions, it suggests that there is significant potential to reach higher prices.

5. Starting Price and Average Starting Price: The starting price is 300 euros, and the average starting price is 325 euros. This indicates that the starting price is relatively low compared to previous hammer prices.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 500 to 700 euros, considering that the condition is better than previous auctions and that interest in the coin appears to be high. A more conservative price could be around 600 euros, while a more optimistic price could approach 700 euros.

Therefore, a reasonable estimated maximum purchase price could be 650 euros.

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

1. Starting price: 500 euros.
2. Current condition: 70 (VG-), which is good condition, although not the best.
3. Auction history: The coin has been auctioned 2 times in the past, and both times it has sold. The average hammer price in the past was 1600 euros, indicating significant interest in this coin.
4. Previous hammer price: In the June 2021 auction, the coin was estimated at 1500 euros and sold for 1800 euros, suggesting there is potential for price increase depending on demand.

Given that the current condition is slightly lower than that of the previous auction (70 vs. 75), and considering that the average hammer price is 1600 euros, a reasonable maximum purchase price could be in the range of 1200 to 1400 euros. This would allow for competitive bidding in the auction without exceeding the historical value of the coin.

Therefore, an estimated maximum purchase price could be 1300 euros.