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 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 similar coins in the past is 54.26 euros.
- The average starting price is 39.65 euros.
- In previous auctions, hammer prices have varied, but there are examples of sales reaching up to 96 euros (as in the auction on October 27, 2020).

3. Current Starting Price: The starting price is 100 euros, indicating that the seller has high expectations for this auction.

4. Price Trends: Observing previous hammer prices, it seems there is a price range that varies depending on the condition and demand at the time of the auction. Coins with similar conditions have reached hammer prices of up to 80-90 euros in the past.

Given all this, an estimated maximum purchase price could be set in a range between 80 and 100 euros, considering that the condition is good and there is a history of hammer prices supporting this figure. However, since the starting price is 100 euros, it might be reasonable to consider a maximum purchase price of around 90 euros, assuming that competition in the auction is not too high.

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

1. Current Condition: The coin has a condition of 75 (MBC), indicating that it is in quite good shape. This is important because coins in better condition tend to fetch higher prices at auctions.

2. Auction History:
- The coin has been auctioned 7 times, of which it has sold 6 times. This indicates a consistent interest in the coin.
- Previous hammer prices for coins with similar conditions (75 and 80) have varied, but generally, the hammer prices have been in a range that suggests the coin could reach significant prices.

3. Previous Hammer Prices:
- In 2020, a coin with a condition of 80 sold for 320 euros.
- In 2018, another with a condition of 75 sold for 345 euros.
- In 2013, one with a condition of 70 sold for 280 euros.
- In 2020, another with a condition of 80 sold for 350 euros.
- In 2023, a coin with a condition of 80 sold for 1005 euros, indicating a high potential in the market.

4. Starting Price and Average Hammer Price:
- The current starting price is 200 euros, and the average hammer price in previous auctions is 398.33 euros. This suggests that the hammer price could be considerably higher than the starting price.

Based on these factors, an estimated maximum purchase price could be in the range of 400 to 600 euros, considering that the condition of the coin is good and there is a history of hammer prices that supports this estimate.

Therefore, a reasonable maximum purchase price could be approximately 500 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially considering the coin's condition (80, MBC+) and the hammer prices from previous auctions.

1. Condition: The coin has a condition of 80 (MBC+), indicating that it is in fairly good shape, but not the best possible condition. This suggests that its price should be below that of coins in superior conditions (such as FDC or MBC).

2. Previous hammer prices: Looking at the hammer prices of coins with similar conditions:
- In 2012, a coin with a condition of 90 was auctioned for 33,294.24 euros.
- In 2014, another coin with a condition of 90 sold for 22,748.32 euros.
- In 2016, a coin with a condition of 90 was auctioned for 5,115.16 euros, but with a condition of 30, indicating that the price can vary significantly with the condition.

3. Average hammer price: The average hammer price for this coin is 5,233.60 euros, which is also a good indicator.

4. Price trends: Given that the coin has been auctioned 19 times and sold 13 times, there is a constant interest in it. This can influence the price, as higher demand may drive up the hammer price.

Based on these factors, an estimated maximum purchase price for the coin with a condition of 80 (MBC+) could be in the range of 4,000 to 6,000 euros. This is based on the average hammer price and the condition, which is a key factor in determining value.

Therefore, a reasonable estimated maximum purchase price could be 5,500 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 75 (MBC), which indicates 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 similar conditions (around 75-80), we can see that the hammer prices have varied. For example:
- In previous auctions, coins with a condition of 75 have reached hammer prices of up to 220 euros.
- The average hammer price for coins of similar condition seems to be around 100-170 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 104.53 euros. This suggests that the starting price is reasonable, but it does not necessarily indicate that a high hammer price will be reached.

4. Sales Trends: The coin has been auctioned 72 times, of which 60 have been successful sales. This indicates good demand, which may influence the price.

5. Comparison with Previous Prices: In previous auctions, the highest hammer price for a coin of similar condition was 400 euros, but that was in a different context and with slightly better condition.

Based on these factors, an estimated maximum purchase price for this coin could be between 150 and 200 euros. This is based on the current condition, previous hammer prices, and sales trends. A price of 200 euros could be a reasonable upper limit, considering that the starting price is 125 euros and there is interest in the coin.

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

1. Current Condition: The coin has a condition of 85 (ebc-), which indicates that it is in fairly good shape, but not the best possible condition. This may influence the price, as coins in better condition tend to reach higher prices.

2. Historical Prices:
- In previous auctions, we have seen hammer prices that vary considerably. For example, in 2011, a coin with a condition of 90 sold for 1807.06 euros, and in 2013, another with the same condition sold for 4823.41 euros.
- In more recent auctions, coins with a condition of 80 sold for 900 euros and 700 euros.

3. Average Hammer Price: The average hammer price for this coin is 1866.09 euros, which gives us a good reference for the value that buyers are willing to pay.

4. Starting Price: The current starting price is 370 euros, which is significantly lower than the average hammer price.

5. Sales Trends: The coin has sold in 5 of the last 6 auctions, indicating a consistent interest in this reference.

Based on these factors, and considering that the condition of the coin is slightly lower than those that have reached higher prices, an estimated maximum purchase price could be set in a range between the average hammer price and a bit less, given its condition.

Estimated Maximum Purchase Price: It could be reasonable to estimate a maximum purchase price of around 1500 to 1700 euros. This reflects an interest in the coin, but also takes into account its current condition.