Based on the provided data, we can conduct an analysis to estimate a maximum purchase price for the coin in question.

1. Starting price: 1500 euros.
2. Current condition: 100 (S/C), indicating that the coin is in excellent condition.
3. Auction history: The coin has been auctioned once before, with a hammer price of 1500 euros and an estimated price of 3000 euros. The condition of that coin was 95, which is lower than the current condition.

Since the condition of the coin being auctioned now is better (100 compared to 95), and considering that the previous hammer price was 1500 euros, it is reasonable to assume that the price could be higher in this auction.

However, the starting price is 1500 euros, and given that there has been prior interest (it has sold in the past and has not gone unsold), this suggests that there is a market for this coin.

Estimated maximum purchase price:
- Given that the previous hammer price was 1500 euros and the current condition is better, we could estimate that the price could increase.
- A reasonable increase could be in the range of 20-30% over the previous hammer price, considering the condition.

Therefore, an estimated maximum purchase price could be in the range of 1800 to 1950 euros. This reflects an increase due to the better condition and interest in the coin, but it also remains within a reasonable range considering the starting price and auction history.

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

1. Current starting price: 1200 euros.
2. Coin condition: 95 (S/C-), indicating good preservation.
3. Auction history: The coin has been auctioned once before, with an estimated price of 1500 euros and a hammer price of 600 euros. This suggests that, although the hammer price was low, the estimated price was significantly higher.
4. Average hammer price: 600 euros, which is considerably lower than the current starting price.

Given that the coin's condition is high (95) and considering that the starting price is 1200 euros, which is the same as the average starting price, we can infer that interest in the coin could be high, especially if it has sold well in the past.

However, the previous hammer price was 600 euros, indicating that the market may not be willing to pay much more than that unless there is a change in demand or perception of the coin's value.

Taking all these factors into account, an estimated maximum purchase price could be positioned between the starting price and the previous hammer price. A reasonable range could be:

Estimated maximum purchase price: 900 - 1200 euros.

This allows for some competition in the auction but also considers the hammer price history.

Given that the coin has a conservation grade of 95 (S/C-), which is a very high grade, and considering that it is being auctioned for the first time, the starting price is set at 1500 euros.

In the collector's market, coins in high conservation conditions often reach prices that can be significantly higher than the starting price, especially if there is interest in the auction. However, since there are no historical sales data for this coin, it is difficult to make an accurate estimate.

Taking into account the conservation and the starting price, an estimated maximum purchase price could be in the range of 2000 to 2500 euros, depending on the interest of collectors and the competition in the auction.

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

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

2. Auction history:
- In the December 2021 auction, the coin was estimated at 1000 euros and sold for 600 euros, with a condition of 80.
- In the May 2023 auction, the coin had a condition of 95, with a starting price of 3000 euros and an estimated price of 5000 euros, although it did not sell.

3. Current starting price: The starting price is 1500 euros, which is significantly lower than the starting price of the previous auction (3000 euros) and the average starting price (2250 euros).

4. Average hammer price: The average hammer price of 600 euros from the previous auction suggests that, although the coin has a high estimated value, market interest may not be as strong.

5. Market trends: Since the coin has only been auctioned twice and has had a low hammer price compared to its estimated price, collector interest may not be as high as expected.

Taking all these factors into account, an estimated maximum purchase price could be positioned between the current starting price and the average hammer price of the previous auction.

Therefore, a reasonable maximum purchase price could be around 1200 to 1500 euros, considering that the condition is high and the starting price is 1500 euros. This allows for some competition in the auction, but also reflects the reality of market interest.

Based on the provided data, we can conduct an analysis to estimate a maximum purchase price for the coin in question.

1. Starting price: 2500 euros.
2. Average hammer price in the past: 5000 euros.
3. Coin condition: 100 (Uncirculated), indicating it is in excellent condition.
4. Auction history: It has been auctioned once before, with an estimated price of 3000 euros and a hammer price of 5000 euros.

Given that the coin has a high condition rating (100) and has reached a hammer price of 5000 euros in the past, it is reasonable to consider that interest in this coin could be high in the upcoming auction.

Estimation of the maximum purchase price:
- Since the average hammer price has been 5000 euros and considering that the starting price is 2500 euros, a maximum purchase price could be in the range of 5000 to 6000 euros, depending on the demand at the auction.

Therefore, an estimated maximum purchase price could be 5500 euros. This allows for a margin for competition in the auction, given the price history and the high condition of the coin.

Based on the provided data, we can conduct an analysis to estimate a maximum purchase price for the coin in question.

1. Starting price: 1800 euros.
2. Average hammer price in the past: 2600 euros.
3. Condition of the coin: 95 (S/C-), indicating very good condition.
4. Estimated price in the previous auction: 3000 euros, although the hammer price was 2600 euros.

Given that the coin is in high condition (95) and has had a hammer price of 2600 euros in the past, it is reasonable to consider that the hammer price could be in a similar range or slightly higher in the next auction, especially if demand is high.

Considering that the starting price is 1800 euros and the previous average hammer price was 2600 euros, a maximum purchase price could be around 2800-3000 euros, taking into account that the hammer price may vary depending on the competition in the auction.

Therefore, an estimated maximum purchase price could be 3000 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 100 (S/C), indicating that it is in excellent condition. This generally translates to a higher price compared to coins with lower condition ratings.

2. Auction History:
- In the past, this coin has had hammer prices that vary significantly. The highest recorded price was 110 euros at an auction in December 2020, with a starting price of 90 euros.
- The average hammer price for coins of similar condition (100) is also an important indicator. Although there is not much specific data for this condition, the overall average hammer price is 34.38 euros.

3. Starting Price and Estimated Price: The current starting price is 30 euros, and the average starting price in the past has been 19.71 euros. This suggests that the current starting price is relatively high, but not unusual for a coin in excellent condition.

4. Sales Trends: The coin has been sold in 35 out of 38 auctions, indicating good demand and sustained interest in this reference.

Based on these factors, an estimated maximum purchase price could be in the range of 100 to 120 euros, considering that the condition is excellent and there have been precedents for hammer prices in that range. However, since the starting price is 30 euros, it is likely that the hammer price will not significantly exceed the previous estimated price. Therefore, a reasonable maximum purchase price could be approximately 100 euros.

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

1. Starting Price: 1800 euros. This is the initial price of the auction.
2. Condition: The coin has a condition rating of 95 (S/C-), indicating that it is in very good shape.
3. Auction History:
- In December 2021, the coin was estimated at 3000 euros and sold for 2200 euros.
- In May 2023, it was estimated at 7000 euros, but it did not sell, which may indicate that the starting price was too high or that there were no buyers willing to pay that amount.

4. Average Starting and Final Prices: The average starting price is 3400 euros, and the average final price is 2200 euros. This suggests that, in general, coins of this reference tend to sell for a higher price than the current starting price.

5. Current Demand: The coin will be auctioned in the coming days, which may influence competition and, therefore, the final price.

Taking these factors into account, an estimated maximum purchase price could be positioned between the average final price and the estimated price of the last auction. Given that the average final price is 2200 euros and the estimated price of the last auction was 7000 euros, but it did not sell, it is reasonable to think that a final price around 3000-3500 euros could be a realistic target.

Therefore, an estimated maximum purchase price could be 3500 euros. This allows for a margin for competition in the auction, considering the good condition of the coin and the potential interest from other buyers.

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 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 41.34 euros.
- In previous auctions, we have seen hammer prices that varied significantly, but there are examples of coins in similar conditions that have sold for significantly higher prices, such as 240 euros for a coin in FDC (100) condition and 86 euros in a recent auction.

3. Starting Price and Estimated Price:
- The current starting price is 12 euros, which is relatively low compared to the average hammer price.
- The estimated price for this auction is 20 euros, which also suggests potential for an increase in the hammer price.

4. Recent Trends: In the most recent auctions, hammer prices have shown an increase, especially for coins in higher condition grades.

Taking all these factors into account, an estimated maximum purchase price for this coin could be in the range of 70 to 100 euros. This range considers the good condition of the coin, the auction price history, and the trend of increasing prices in recent auctions.

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

1. Condition: The coin has a condition of 95 (S/C-), which indicates 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 observing the hammer prices of coins with similar conditions (95 and 100), we can see that the hammer prices have varied considerably. For example:
- In 2014, a coin with a condition of 95 was auctioned for 122 euros.
- In 2018, another coin with a condition of 95 was auctioned for 70 euros.
- In 2020, coins with a condition of 100 were auctioned for 176 and 300 euros.

3. Starting price and average hammer price: The current starting price is 125 euros, and the average hammer price in the past has been 69 euros. However, given that the condition of this coin is high, it is reasonable to expect that the hammer price will be above average.

4. Market trends: Since the coin has been auctioned 49 times and has had a high sales percentage (42 out of 49), this suggests that there is consistent interest in this coin.

Based on these factors, an estimated maximum purchase price could be between 150 and 250 euros, considering that the condition is high and that significant hammer prices have been reached in the past for coins in similar conditions.

Therefore, a reasonable maximum purchase price could be 200 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 rating of 90 (EF), indicating that it is in very good shape. This generally increases its value compared to coins in lower conditions.

2. Previous Prices:
- In the auction on October 17, 2022, the coin was auctioned with a starting price of 80 euros and sold for 80 euros, with an estimated price of 140 euros. This suggests that, despite the starting price being 80 euros, the interest in the coin was high, and the estimated price was significantly higher.
- In the auction on November 16, 2022, the starting price was 18 euros, but it did not sell, indicating that interest was low at that time.
- In the auction on February 14, 2024, the starting price was 18 euros, and it sold for 42 euros, with a condition rating of 70, showing that interest can also vary based on condition.

3. Current Starting Price: The current starting price is 60 euros, which is lower than the starting price of 80 euros in the previous auction with a similar condition.

4. Average Selling Price: The average selling price of 61 euros suggests that, in general, coins of this reference tend to sell around this price.

Given all this, and considering that the current condition of the coin is quite good (90), an estimated maximum purchase price could be in the range of 80 to 100 euros. This is based on the interest shown in previous auctions and the current condition.

Therefore, an estimated maximum purchase price could be 90 euros.

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

1. Condition: The coin has a condition rating of 75 (MBC), indicating that it is in quite good shape. This generally increases its value compared to coins with lower conditions.

2. Auction history: The coin has been auctioned twice in the past, and in the last auction, it sold for 45 euros. This is an important indicator of the interest and value of the coin in the market.

3. Starting price and previous prices: The current starting price is 30 euros, and the average hammer price in previous auctions has been 45 euros. This suggests that the market is willing to pay more than the starting price.

4. Market trends: Since the coin has sold on both occasions it was auctioned, and considering that the average hammer price is 45 euros, it is reasonable to assume that interest in this coin remains strong.

Based on these factors, an estimated maximum purchase price could be around 50-55 euros. This is because, although the average hammer price is 45 euros, the good condition and interest in the coin could justify a slightly higher price.

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

1. 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. Auction history: By looking at previous hammer prices for coins with a similar condition (95), we can see that they have reached hammer prices of up to 75 euros in recent auctions. For example, at the auction on November 11, 2021, a coin with a condition of 95 was sold for 75 euros.

3. Average hammer price: The average hammer price for this coin is 34.82 euros, but given the high condition, we can expect the actual hammer price to be above this average.

4. Starting prices and estimates: The current starting price is 18 euros, and the average starting price is 24.1 euros. However, given the hammer price history and the condition, it is reasonable to expect the hammer price to be in a higher range.

5. Recent trends: In the most recent auctions, hammer prices for coins of similar condition have shown an increase, suggesting that demand may be growing.

Based on these factors, an estimated maximum purchase price for this coin could be between 70 and 80 euros, considering that the condition is high and there is a hammer price history that supports this estimate.

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 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 has been 43.59 euros.
- In previous auctions, coins with a similar condition (95) have reached hammer prices of up to 120 euros (as seen in the auctions on 2020-09-17 and 2020-10-21).

3. Starting Price: The starting price is 40 euros, which is a good starting point, but given the history of hammer prices, it is likely that the final price will be significantly higher.

4. Recent Trends: In the most recent auctions, hammer prices for coins of similar condition have shown a range that can reach up to 100-120 euros.

Based on these factors, an estimated maximum purchase price for this coin could be between 90 and 120 euros, considering that the condition is high and there is a history of hammer prices that supports this estimate.

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

To estimate a maximum purchase price for the coin that will be auctioned, we can consider several factors:

1. Coin Condition: The coin in question has a condition of 95 (S/C-), which indicates 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 observing the hammer prices of coins with similar conditions (95) in previous auctions, we can see that:
- In 2023, a coin with a condition of 95 was sold for 150 euros.
- In 2021, another coin with a condition of 95 was sold for 190 euros.
- In 2014, a coin with a condition of 95 was sold for 190 euros.

3. Starting Price and Average Prices: The starting price of the current auction is 90 euros, and the average hammer price in previous auctions is 60.34 euros. However, given that the coin's condition is high, it is reasonable to expect that the hammer price will be above the average.

4. Sales Trends: The coin has been auctioned 75 times, of which it has sold 65 times. This indicates good demand and a history of successful sales.

Based on these factors, an estimated maximum purchase price could be between 150 and 200 euros, considering that the condition is high and there are precedents for sales in that range. Therefore, a reasonable maximum purchase price could be 180 euros.

To estimate a maximum purchase price for the coin that will be auctioned, let's consider several factors:

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

2. Auction history:
- The average hammer price for coins with a similar condition (95) has been approximately 60 euros in previous auctions.
- In recent auctions, the hammer price has varied, but it has reached up to 130 euros in a recent auction.

3. Starting price: The starting price is 30 euros, which is relatively low compared to previous hammer prices.

4. Sales trends: The coin has been sold in 52 out of 58 auctions, indicating good demand.

5. Previous estimated prices: Estimated prices have ranged between 30 and 60 euros, but in recent auctions, higher hammer prices have been achieved.

Taking all these factors into account, an estimated maximum purchase price for this coin could be between 80 and 100 euros, considering its good condition and the history of hammer prices in previous auctions. This would allow for competitive bidding in the auction without exceeding the market value it has demonstrated in the past.

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: By observing previous hammer prices for coins with a similar condition (95), we can see that the hammer prices have varied. For example:
- In recent auctions, hammer prices for coins with a condition of 95 have ranged from 25 to 45 euros.
- In earlier auctions, the highest hammer price for a coin with a condition of 95 was 85 euros.

3. Average Hammer Price: The average hammer price for this coin is 20.91 euros, but given the high condition, we can expect the actual hammer price to be above this average.

4. Auction Trends: The coin has been auctioned 85 times, of which 73 have been successful sales. This indicates a consistent interest in the coin, which may increase its value.

5. Starting Prices and Estimates: The current starting price is 12 euros, and the average starting price is 13.35 euros. However, given the hammer price history and the condition, it is reasonable to expect the hammer price to be above these values.

Based on these factors, an estimated maximum purchase price for this coin could be between 45 and 70 euros. This is based on the hammer price history for coins of similar condition and the demonstrated interest in previous auctions.

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

1. Coin Condition: The coin to be auctioned has a condition of 95 (S/C-), indicating that it is in very good shape. This generally increases its value compared to coins with lower conditions.

2. Price History: By observing the hammer prices of coins with similar conditions (95 and 100) in previous auctions, we can see that:
- In past auctions, coins with a condition of 100 have reached hammer prices of up to 85 euros.
- Coins with a condition of 95 have had hammer prices ranging between 19 and 36 euros.

3. Average Hammer Price: The average hammer price for this particular coin is 22.27 euros, which is also an indicator to consider.

4. Recent Trends: In the most recent auctions, the hammer price for coins with a condition of 95 has been between 16 and 25 euros.

Based on this data, an estimated maximum purchase price for the coin in question could be in the range of 30 to 40 euros, considering that the condition is high and there is a price history that supports this range. However, since the starting price is 15 euros, it is likely that the hammer price will not significantly exceed this range unless there is considerable interest from collectors.

Therefore, a reasonable estimated maximum purchase price could be 35 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 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 this coin is 27.25 euros.
- In previous auctions, we have seen hammer prices that vary, but some relevant examples are:
- In 2020, a coin with a condition of 95 was sold for 34 euros.
- In 2018, a coin with a condition of 100 was sold for 220 euros, indicating that there is a market for high prices depending on demand.

3. Starting Price and Estimates:
- The current starting price is 15 euros, which is relatively low compared to the average hammer price.
- The estimated price for this auction is 25 euros, which also suggests potential for an increase in the hammer price.

4. Sales Trends: The coin has been sold in 71 out of 78 auctions, indicating good demand and a history of successful sales.

Based on these factors, an estimated maximum purchase price could be between 35 and 50 euros, considering that the condition is high and there is a history of hammer prices that supports this estimate. However, since the market can be volatile and depends on demand at the time of the auction, it is advisable to be prepared to adjust the bid according to the competition in the auction.

Given that the coin has a grade of 95 (S/C-), which is a very high grade, and considering that this is the first time it is being auctioned, the starting price is set at 900 euros.

In general, coins in similar conditions tend to reach hammer prices that can be significantly higher than the starting price, especially if there is interest in the auction. Without historical sales data for this specific coin, it is difficult to make an accurate estimate, but we can consider that, in previous auctions of coins with similar grades, hammer prices can range from 1.5 to 2 times the starting price.

Therefore, an estimated maximum purchase price could be in the range of 1350 to 1800 euros, depending on the interest of the bidders and the demand at the time of the auction.

In summary, an estimated maximum purchase price could be around 1500 euros.