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

In the collector's market, coins in similar conditions often reach prices above the starting price, especially if demand is high. Without historical sales data for this reference, it is difficult to make an accurate estimate, but based on the conservation grade and the starting price, a maximum estimated purchase price could be in the range of 1,200 to 1,500 euros, depending on the interest of collectors in the auction.

Therefore, a maximum estimated purchase price could be approximately 1,300 euros.

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 1200 euros.

In general, coins in similar conditions tend to reach hammer prices that can exceed 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 the case of high-grade coins, the hammer price can be between 1.5 and 2 times the starting price, depending on demand.

Therefore, an estimated maximum purchase price could be in the range of 1800 to 2400 euros. However, since the starting price is 1200 euros, a more conservative hammer price could be around 1800 euros, assuming there is interest in the auction.

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

1. Coin Condition: The coin has a condition rating of 90 (EBC), indicating that it is in good shape. This generally translates to a higher value compared to coins with lower conditions.

2. Auction History:
- It has been auctioned 8 times in the past, of which it has sold 6 times.
- The average hammer price in previous auctions is 41.25 euros.
- In the most recent auction (2023-05-23), the hammer price was 26 euros for a coin with a condition of 95, suggesting that the price may vary depending on the condition.

3. Starting and Estimated Prices:
- The current starting price is 30 euros, and the average starting price in previous auctions is 25.14 euros.
- The estimated price for this auction is 30 euros, which matches the starting price.

4. Price Trends:
- In the December 2021 auction, a coin with a condition of 90 sold for 60 euros, indicating that there is high selling potential for coins in good condition.
- In other auctions, hammer prices have varied, but the range seems to be between 24 and 60 euros.

Based on this data, an estimated maximum purchase price could be set in a range between 50 and 60 euros, considering the good condition of the coin and the historical hammer price data from previous auctions. This would allow for competitive bidding without exceeding a reasonable limit based on historical performance.

Therefore, an estimated maximum purchase price could be 55 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 (EF+), 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 similar coins in the past has been 41.64 euros.
- In previous auctions, hammer prices have reached up to 110 euros, although this can depend on the condition and demand at that time.

3. Starting Price and Estimates:
- The current starting price is 25 euros, and the average starting price in the past has been 20.58 euros.
- The estimated price for this auction is 40 euros, suggesting that bidders may be willing to pay more than the starting price.

4. Sales Trends: Of the 20 times it has been auctioned in the past, 16 have resulted in sales, indicating a consistent interest in this coin.

Taking all these factors into account, an estimated maximum purchase price could be around 70-80 euros. This is based on the auction price history and the good condition of the coin, which suggests it could attract bidders willing to pay a higher price.

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 to be auctioned 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 coin has been auctioned 6 times in the past, of which it has sold 5 times. This indicates a consistent interest in the coin.
- The average hammer price from previous auctions is 31.8 euros, which can serve as a benchmark.

3. Previous Auction Prices:
- In past auctions, hammer prices have varied, with a maximum of 110 euros in a 2021 auction for a coin with a condition of 85.
- In the most recent auction (2023), although the hammer price is not indicated, the starting price was 15 euros with an estimated price of 25 euros.

4. Current Starting Price: The starting price for the current auction is 40 euros, suggesting that significant interest in the coin is expected.

5. Price Trends: Given that the coin's condition is high and considering the price history, it is reasonable to assume that the hammer price could be above the historical average.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 70 to 90 euros, considering the high condition and demonstrated interest in previous auctions. This also allows for some margin for competition in the auction.

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

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. Previous auction prices: By looking at the auction prices of coins with a similar condition (95), we find the following relevant data:
- In 2022, two coins with a condition of 95 were auctioned, one with a final price of 18 euros and the other with a final price of 35 euros.
- In 2023, a coin with a condition of 95 was auctioned at a price that has not yet been determined, but it was estimated at 25 euros.

3. Price trends: The average auction price for similar coins is 27.1 euros, which also suggests that the final price may be in a similar range.

4. Starting price: The starting price is 18 euros, which may influence the final price, but given that the coin is in good condition, it is likely that the final price will be higher than the starting price.

Based on these factors, an estimated maximum purchase price could be in the range of 30 to 40 euros, considering that the condition is high and that previous auction prices for similar coins have reached up to 35 euros. Therefore, a reasonable maximum purchase price could be 35 euros.

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: 3400 euros.
3. Condition of the coin: 100 (Uncirculated), indicating that it is in excellent condition.
4. Auction history: It has been auctioned once before, with a hammer price of 3400 euros.

Given that the coin has a high condition rating (100) and has reached a hammer price of 3400 euros in the past, it is reasonable to consider that the hammer price could be in a similar range or even higher, depending on the demand in the current auction.

Estimation of the maximum purchase price:
- Since the average hammer price has been 3400 euros and considering that the coin will be auctioned again, a maximum purchase price could be between 3400 and 3600 euros, assuming that demand remains stable or increases.

Therefore, an estimated maximum purchase price could be 3600 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 95 (EBC+), 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 similar conditions (95 and 100), we can see that the hammer prices have varied. For example:
- In a 2020 auction, a coin with a condition of 95 was sold for 65 euros.
- In another auction, a coin with a condition of 100 was sold for 220 euros.

3. Average Hammer Price: The average hammer price for this coin is 41.27 euros, providing a reference point.

4. Starting Price and Average Starting Price: The starting price is 25 euros, and the average starting price is 25.97 euros. This suggests that the market expects the coin to sell for a price higher than the starting price.

5. Recent Trends: In the most recent auctions, hammer prices have shown an increase, which could indicate a rising trend in interest for this coin.

Taking all these factors into account, an estimated maximum purchase price for the coin could be in the range of 70 to 100 euros, considering its good condition and the hammer price history of similar coins. A price of 85 euros could be a reasonable target, as it falls in the middle of this range and reflects both the quality of the coin and market trends.

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

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

2. Auction history:
- The average hammer price for coins with a similar condition (95) in the past has been up to 110 euros, as seen in the auction on December 16, 2021.
- In other auctions, hammer prices have varied, but the range has been between 35 and 135 euros for coins with condition ratings from 90 to 95.

3. Starting price and previous prices:
- The current starting price is 75 euros, which is slightly higher than the average starting price of 33.75 euros. This may indicate an expectation of greater interest in this auction.
- The average hammer price of 59.71 euros suggests that, although the starting price is higher, the interest may align with buyers' expectations.

4. Price trends:
- Given that the coin is in good condition and has had high hammer prices in the past, it is reasonable to consider that the hammer price could be in the upper range.

Based on these factors, an estimated maximum purchase price could be between 100 and 120 euros, considering that the condition is high and there have been precedents for hammer prices in that range. However, since the starting price is 75 euros, it is likely that the hammer price will not significantly exceed this range unless there is exceptional interest in the coin.

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

Given that the coin has a conservation rating of 80 (MBC+), indicating good quality, and considering that this is the first time it is being auctioned, the starting price is set at 600 euros.

In previous auctions, the average hammer price is not available, suggesting that there are no historical data that could influence the estimation. However, since the starting price is 600 euros and the conservation is good, we could estimate that the hammer price might be in a range above the starting price.

Taking these factors into account, an estimated maximum purchase price could be between 800 and 1000 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 the following factors:

1. Starting Price: 1500 euros.
2. Condition: The coin has a condition rating of 95 (S/C-), indicating that it is in very good shape, although not the best possible condition (which would be 110).
3. Auction History: The coin has been auctioned once before, with an estimated price of 2000 euros and a hammer price of 4800 euros. This suggests that there is significant interest in this coin, and that the hammer price can be considerably higher than the starting price.
4. Average Hammer Price: The average hammer price for this coin is 4800 euros, indicating that, in general, buyers are willing to pay much more than the starting price.

Given that the coin is in good condition and has shown high interest in previous auctions, a reasonable maximum purchase price could be slightly lower than the average hammer price, but still significant.

Estimated Maximum Purchase Price: It could be reasonable to consider a maximum purchase price in the range of 4000 to 4500 euros, given the auction history and the condition of the coin. This allows for some competition in the auction, while still remaining below the previous average hammer price.

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 increases its value compared to coins with lower conditions.

2. Auction History:
- The average hammer price for similar coins in the past is 67.89 euros.
- The coin has been auctioned 24 times, of which it has sold 19 times, indicating good demand.
- Previous hammer prices for coins with a similar condition (95) have varied, but there are examples of auctions reaching up to 50 euros in recent sales.

3. Starting Price and Estimates:
- The current starting price is 12 euros, which is relatively low compared to the average hammer price.
- The estimated hammer price in previous auctions for coins with a condition of 95 has reached up to 30 euros or more.

Considering these factors, an estimated maximum purchase price could be in the range of 50 to 70 euros, given that the condition is high and there is a history of hammer prices supporting this estimate. However, since the starting price is 12 euros, buyers may be willing to bid more, especially if there is interest in the coin.

Therefore, a reasonable maximum purchase price could be between 60 and 70 euros.