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 80 (MBC+), indicating that it is in quite 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 100.39 euros.
- In previous auctions, coins with a similar condition (80) have reached hammer prices of up to 370 euros (as seen in the auction on 2018-11-07).
- The last auction with a condition of 80 had a hammer price of 85 euros (2023-02-28).

3. Starting Price and Average Starting Price:
- The current starting price is 60 euros, which is slightly higher than the average starting price of 56.25 euros. This suggests that the seller has expectations of a higher price.

4. Sales Trends: Out of the 27 times it has been auctioned, 24 have been sold, indicating good demand for this coin.

5. Previous Estimates: The estimated price for this auction is 80 euros, which can also serve as an indicator of what buyers are willing to pay.

Based on these factors, an estimated maximum purchase price could be between 100 and 130 euros, considering that the average hammer price has been 100.39 euros and there are precedents of higher prices in previous auctions. However, since the starting price is 60 euros, it is likely that buyers will be willing to bid more, especially if there is interest in the coin.

Therefore, a reasonable maximum purchase price could be 120 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 75 (MBC), indicating that it is in quite 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 has been 668.63 euros, suggesting that, in general, buyers are willing to pay significantly higher prices than the starting price.
- In the past, hammer prices have varied considerably, ranging from 40 euros to 4600 euros, depending on the condition and other factors.

3. Starting price and previous prices:
- The current starting price is 40 euros, which is relatively low compared to the average hammer price.
- In previous auctions, the highest hammer price was 4600 euros for a coin with a condition of 95, indicating that the value can increase significantly with good condition.

4. Sales trends: The coin has been sold in 8 out of the 9 times it has been auctioned, indicating a consistent interest in the coin.

Given all this, an estimated maximum purchase price could be set in a range that reflects both the current condition and the price history. Considering that the condition is 75 and the average hammer price is 668.63 euros, a reasonable maximum purchase price could be in the range of 600 to 800 euros.

Therefore, an estimated maximum purchase price could be 800 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 of 70 (VF-). This indicates that it is in an acceptable state, but not of high quality. Coins with a higher condition tend to reach higher prices at auctions.

2. Auction History:
- The average hammer price for similar coins in the past is 571.38 euros.
- The condition of the coins that have been sold in the past varies, but there are examples of coins with conditions of 75 and 90 that have reached significantly higher prices (for example, 3639.55 euros for a coin with a condition of 75).

3. Starting and Hammer Price:
- The current starting price is 50 euros, which is relatively low compared to the average hammer price.
- The average starting price of 364.95 euros also suggests that there is potential for an increase in the hammer price.

4. Recent Trends:
- In the most recent auctions, the hammer prices for coins with similar conditions have ranged between 60 and 230 euros, indicating that there is moderate interest in this price range.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 200 to 300 euros. This is based on the auction price history for coins of similar condition and the potential for an increase in the hammer price depending on demand at the auction.

Therefore, a reasonable maximum purchase price could be 250 euros.

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

1. Coin Condition: The coin has a condition rating of 80 (MS+), indicating that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Previous Prices: By looking at previous auction prices for coins with a similar condition (80), we can see that auction prices have varied, but have reached up to 130 euros in the case of a previous auction. However, most auction prices for similar conditions have been in the range of 50 to 90 euros.

3. Average Auction Price: The average auction price for this coin is 51.91 euros, which can also serve as a reference.

4. Starting Price: The current starting price is 40 euros, suggesting that the auctioneer expects moderate interest in the coin.

5. Auction Trends: The coin has been auctioned 61 times, of which 53 have been sold. This indicates good demand in the market.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 80 to 100 euros. This is based on the coin's condition, previous auction prices, and general interest in the coin. Therefore, a reasonable maximum purchase price could be 90 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 to be auctioned has a condition of 80 (MBC+). This is an important factor, as coins in better condition tend to fetch higher prices.

2. Previous Prices: By observing the hammer prices of coins with similar conditions (around 80), we can see that they have reached varying hammer prices. For example:
- In 2019, a coin with a condition of 80 was auctioned for 25 euros.
- In 2022, a coin with a condition of 85 was auctioned for 190 euros.
- In 2021, a coin with a condition of 90 was auctioned for 230 euros.

3. Average Hammer Price: The average hammer price for this coin is 96.47 euros, indicating that, in general, coins of this reference tend to sell for relatively high prices.

4. Starting Price and Estimates: The starting price is 40 euros, and the average starting price is 53.07 euros. This suggests that the hammer price could be significantly higher than the starting price.

5. Auction Trends: Given that there have been 76 previous auctions and 69 sales, the sell-through rate is high, indicating consistent interest in this coin.

Based on these factors, an estimated maximum purchase price could be in the range of 150 to 250 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate. However, since the hammer price can vary depending on demand at the time of the auction, a prudent maximum purchase price could be approximately 200 euros.