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. Coin Condition: The coin has a condition of 70 (VF-). This indicates that it is in average condition, which generally translates to a lower auction price compared to coins in better condition.

2. Previous Auction Prices: By observing the auction prices of coins with a similar condition (around 70), we can see that the auction prices have varied. For example:
- In previous auctions, coins with a condition of 70 have reached auction prices of 20, 21, 22, 25, and 30 euros.
- The general trend shows that the auction price for coins in VF- condition tends to be in the range of 20 to 30 euros.

3. Average Auction Price: The average auction price for this coin is 67.01 euros, but this includes coins in better condition. Given that the condition of this coin is lower, it is reasonable to adjust our expectations downward.

4. Starting Price: The starting price is 15 euros, which indicates that the auctioneer expects moderate interest in the coin.

5. Final Estimate: Considering all these factors, an estimated maximum purchase price for this coin, taking into account its condition and previous auction prices, could be in the range of 25 to 35 euros. This reflects a price that is reasonable for a coin in VF- condition that has had interest in previous auctions.

Therefore, an estimated maximum purchase price could be 30 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 of 70 (MS-), indicating that it is in acceptable shape, but not of high quality. This generally affects the price, as coins in better condition tend to fetch higher prices.

2. Auction History: By looking at previous hammer prices for coins with similar conditions, we can see that:
- In past auctions, coins with a condition of 70 have reached hammer prices that vary, but are generally in the range of 20 to 45 euros.
- The last auction of a coin with a similar condition (70) had a hammer price of 26 euros.

3. Average Hammer Price: The average hammer price for this particular coin is 49.04 euros, but this may be influenced by coins in better condition.

4. Recent Trends: In the most recent auctions, hammer prices for coins with a condition of 70 have been around 20 to 35 euros.

5. Starting Price: The starting price is 15 euros, suggesting that the seller expects a reasonable price, but not necessarily a high one.

Based on these factors, an estimated maximum purchase price for this coin could be between 30 and 45 euros, considering that the condition is not the best and that the hammer price history for similar coins supports this estimate.

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. Current Condition: The coin has a condition rating of 75 (MBC), indicating that it is in fairly good shape, but not of the highest quality.

2. Previous Prices: By looking at the auction prices of coins with a similar condition (75) in the past, we can see that the auction prices have varied. For example, in previous auctions, coins with a condition of 75 have reached hammer prices of up to 30-50 euros.

3. Average Hammer Price: The average hammer price for this particular coin is 47.86 euros, which gives us a good reference for what buyers are willing to pay.

4. Starting Price: The starting price is 15 euros, suggesting that there is considerable room for the hammer price to be higher.

5. Recent Trends: In the most recent auctions, hammer prices for coins of similar condition have shown a range of 30 to 60 euros, depending on demand and other factors.

Based on these points, an estimated maximum purchase price for this coin could be between 50 and 70 euros, considering that the condition is good and there is interest in the coin. However, it is important to keep in mind that the final price may vary depending on competition in the auction and specific demand at that time.

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 39.4 euros, suggesting that, in general, buyers are willing to pay significantly more than the starting price.
- In the 2018 auction, the coin was sold for 130 euros, which is an exceptionally high price and could be an outlier, but it indicates that there is potential for high value in the market.

3. Starting and Hammer Prices:
- The current starting price is 12 euros, and the average hammer price in previous auctions is 39.4 euros. This suggests that the hammer price could be in a higher range than the starting price.

4. Auction Trends: Since the coin has been sold on all previous occasions and there have been no failed attempts at sale, this indicates a steady demand.

Based on these factors, an estimated maximum purchase price could be in the range of 40 to 60 euros, considering that the average hammer price is 39.4 euros and that the coin's condition is high. However, taking into account the exceptional hammer price of 130 euros in 2018, it might be reasonable to consider a maximum price of up to 70 euros, depending on the competition in the auction and the interest of collectors.

Therefore, an estimated maximum purchase price could be 60 euros.

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

1. Current Condition: The coin has a condition of 80 (VF+), which indicates that it is in relatively 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 35.38 euros.
- The average starting price is 36.73 euros.
- 37 out of the 69 coins auctioned have been sold, indicating a sell-through rate of 53.6%.

3. Previous Prices:
- In past auctions, hammer prices have varied significantly, with some reaching up to 110 euros in exceptional conditions (such as in 2022 with a condition of 95).
- The majority of hammer prices for similar conditions (75-85) have been in the range of 20 to 60 euros.

4. Recent Trends:
- In the most recent auctions, hammer prices have been in the range of 30 to 50 euros for similar conditions.

Based on these factors, an estimated maximum purchase price for the coin with a condition of 80 (VF+) could be in the range of 50 to 70 euros. This is based on the hammer price history and the current condition, which suggests that the coin has significant value but does not reach the highest levels of condition.

Therefore, a reasonable maximum purchase price could be 65 euros.

To estimate a maximum purchase price for the coin with a grade of 70 (MS-), we can analyze historical data from previous auctions of coins with a similar grade and their hammer prices.

1. Historical Price Analysis:
- In the past, coins with a grade of 70 have had hammer prices that varied. For example:
- In a 2020 auction, a coin with a grade of 70 had a hammer price of 25 euros.
- In another 2020 auction, the hammer price was 31 euros.
- In 2021, the hammer price was 50 euros.
- In 2022, the hammer price was 70 euros.

2. Price Trends:
- Observing the hammer prices, it seems that coins with a grade of 70 tend to sell between 25 and 70 euros, with some peaks in specific auctions.

3. Starting Price and Average Price:
- The current starting price is 15 euros, and the average hammer price in the past has been 128.83 euros, but this includes coins of better grades.

4. Estimation:
- Given that the coin's grade is 70 (MS-), a reasonable hammer price could be in the range of 30 to 70 euros, based on previous auctions.

Conclusion:
An estimated maximum purchase price for this coin, considering its grade and historical prices, could be approximately 60 euros. This is based on the price trend for coins with a similar grade and the current market context.

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

1. Current Condition: The coin has a grade of 70 (MS-), indicating that it is in an acceptable state, but not among the best qualities.

2. Historical Prices: By looking at previous auction prices for coins with a similar grade (70), we can see that the hammer price has varied. For example:
- In a 2020 auction, a coin with a grade of 70 sold for 18 euros.
- In another auction in 2023, it sold for 20 euros.

3. Average Hammer Price: The average hammer price for this particular coin is 114.55 euros, but this includes coins of different grades. For higher grades, prices can be significantly higher.

4. Starting Price and Estimates: The starting price is 15 euros, and the average starting price is 59.77 euros. This suggests that the market expects the coin could reach a higher price.

5. Recent Trends: In the most recent auctions, hammer prices for coins with similar grades have been in the range of 20 to 40 euros.

Based on these factors, an estimated maximum purchase price for the coin with a grade of 70 could be between 25 and 40 euros, considering that the market may be willing to pay a bit more for a coin in an acceptable state.

Therefore, a reasonable maximum purchase price could be 35 euros.