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

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

2. Price History: By looking at previous auction prices for coins with similar conditions (95 and 100), we can see that auction prices have varied. For example:
- In 2021, a coin with a condition of 95 was auctioned for 45 euros.
- In 2022, another coin with a condition of 95 was auctioned for 25 euros.
- In 2023, a coin with a condition of 95 was auctioned for 45 euros.

3. Average Auction Price: The average auction price for this coin is 17.15 euros, but given the high condition, we can expect the actual auction price to be above this average.

4. Starting Price and Previous Estimates: The starting price is 15 euros, and the average starting price in previous auctions has been 12.15 euros. However, given the auction history and the condition, it is reasonable to expect that the auction price will be above these values.

Taking all these factors into account, an estimated maximum purchase price for this coin could be between 40 and 50 euros, considering that the condition is high and there are precedents for auctions in that range. However, it is important to keep in mind that the final price will depend on the competition in the auction and the interest of other collectors.

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 increases its value compared to coins with lower conditions.

2. Auction history:
- The average hammer price in previous auctions is 15.98 euros.
- In past auctions, we have seen hammer prices that vary significantly, with a maximum price of 130 euros for a coin in condition 100, and other hammer prices ranging from 10 to 50 euros for conditions similar to the current one (95).

3. Starting price and estimates:
- The current starting price is 15 euros, which is a good starting point.
- The estimated price for this auction is 25 euros, suggesting that bidders may be willing to pay more than the starting price.

4. Sales trends: The coin has been sold in 70% of the auctions it has participated in, indicating relatively strong demand.

Based on these factors, an estimated maximum purchase price could be in the range of 30 to 50 euros. This is based on the hammer price history for coins of similar condition and the demonstrated interest in previous auctions.

Therefore, a reasonable maximum purchase price could be 40 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 (S/C-), indicating that it is in very good shape. 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) has been 75 euros in a previous auction (2020-12-17).
- In other auctions, hammer prices for coins with a condition of 95 have varied, but the range has generally been high, with hammer prices reaching up to 40-75 euros.

3. Starting Price and Average Hammer Price:
- The current starting price is 15 euros, which is relatively low compared to previous hammer prices.
- The average hammer price in the past has been 17.17 euros, suggesting that the final hammer price could be higher than the starting price.

4. Recent Trends: In the most recent auctions, hammer prices for coins with a condition of 95 have shown a range of 30 to 40 euros, indicating that there is a steady demand for coins in good condition.

Based on these factors, an estimated maximum purchase price for this coin could be between 40 and 75 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 75 euros.

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

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

2. Auction history: By observing the hammer prices of coins with similar conditions (around 90-95), we can see that the hammer prices have varied, but there are examples of coins that have sold for significantly higher prices. For instance, in previous auctions, coins with a condition of 90 have reached hammer prices of up to 35 euros.

3. Average hammer price: The average hammer price for this coin is 27.36 euros, which provides a good reference.

4. Recent trends: In the most recent auctions, hammer prices for coins of similar condition have shown a range between 20 and 35 euros.

Based on these factors, an estimated maximum purchase price for the coin in question could be around 35 euros, considering that this price reflects both its condition and the recent auction history. However, it is important to keep in mind that the final price may vary depending on the competition in the auction and the demand at that time.

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

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:
- The average hammer price in previous auctions is 19.5 euros.
- In recent auctions, hammer prices have reached up to 60 euros (in December 2021) and 39 euros (in April 2018) for coins of similar condition.
- In the most recent auction with a condition of 95, the hammer price was 30 euros.

3. Starting Price and Estimates:
- The current starting price is 12 euros, which is reasonable given the price history.
- The estimated price in previous auctions has varied, but it has reached up to 30 euros on some occasions.

4. Trends: The general trend seems to be that coins in EF+ condition tend to sell above the starting price, especially if there is interest in the auction.

Based on these factors, an estimated maximum purchase price for this coin could be between 25 and 35 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 30 euros.

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

1. Current Condition: The coin has a condition rating of 30 (BC+). This indicates that it is not in the best condition, which will affect its value.

2. Auction History:
- The average hammer price for similar coins in the past has been 86.58 euros.
- The condition of the coins auctioned in the past varied, but there are examples of coins with similar conditions that have sold for prices ranging from 9 to 40 euros, depending on the condition and demand.

3. Previous Hammer Prices:
- In previous auctions, coins with condition ratings of 30 have had hammer prices ranging from 9 to 40 euros.
- The most recent auction of a coin with a similar condition had a hammer price of 30 euros.

4. Market Trends: Given that the coin has been auctioned 91 times and has had a high sales percentage (82 out of 91), this suggests that there is a consistent interest in this coin.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 30 to 40 euros. This is based on the historical hammer prices for coins with a similar condition and the general interest in the coin. However, since the condition is not high, it is wise not to exceed 40 euros in the bid.

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 of the highest quality.

2. Auction History:
- The average hammer price for similar coins in the past is 85.84 euros.
- In previous auctions, coins with a similar condition (70) have had hammer prices that vary, but some examples are:
- 20 euros in December 2019.
- 25 euros in September 2019.
- 15 euros in December 2020.
- 29 euros in January 2023.

3. Price Trends:
- The average starting price is 97.72 euros, suggesting that sellers are looking for higher prices, but this does not always translate into hammer prices.

4. Comparison with Recent Hammer Prices:
- In recent auctions, the hammer price for coins of similar condition has been in the range of 20 to 30 euros, with some spikes for coins in better condition.

5. Sales Expectations:
- Given that there are 3 auctions scheduled in the coming days, this may increase competition and potentially the hammer price.

Based on these factors, an estimated maximum purchase price for this coin could be between 30 and 40 euros. This is based on the historical hammer prices for coins of similar condition and the current market trend.

To estimate a maximum purchase price for the coin with a grade of 85 (ebc-), we can analyze historical data from previous auctions and hammer prices.

1. Data from previous auctions:
- The grade of 85 (ebc-) has had hammer prices that vary, but generally, the hammer prices for coins with similar grades have been in a range of 12 to 35 euros.
- In particular, it has been observed that in previous auctions, coins with a grade of 85 have reached hammer prices of 30 euros on several occasions.

2. Analysis of hammer prices:
- The average hammer price for similar coins is approximately 27.36 euros.
- The highest hammer prices for coins with a grade of 85 have been up to 35 euros.

3. Recent trends:
- In the most recent auctions, the hammer price for coins with a grade of 85 has shown a trend of stabilizing around 20-30 euros.

4. Final estimation:
- Taking all these factors into account, an estimated maximum purchase price for the coin with a grade of 85 (ebc-) could be around 30 euros. This price reflects both the historical value and the current trend in the market.

Therefore, I would recommend considering a maximum purchase price of 30 euros for this coin in the upcoming auction.