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

1. Starting Price: 100 euros. This is the initial price expected to be obtained at the auction.
2. Coin Condition: 75 (MBC). This indicates that the coin is in fairly good condition, which may positively influence its value.
3. Auction History:
- It has been auctioned 3 times in the past, of which it has only sold once.
- The average starting price in previous auctions was 70.43 euros, and the average hammer price was 40.86 euros.
- In the 2015 auction, the hammer price was 40.86 euros, and in 2021, the estimated price was 58.21 euros.

Given that the coin is in good condition and the starting price is 100 euros, it is reasonable to assume that interest in the coin could be higher in this auction. However, the sales history shows that it has not always sold for high prices.

Taking into account the starting price and the history of hammer prices, an estimated maximum purchase price could be positioned between the starting price and the average hammer price of previous auctions.

Therefore, an estimated maximum purchase price could be around 80-90 euros. This reflects interest in the coin but also considers the history of lower prices in previous auctions.

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 80 (MBC+), indicating that it is in relatively good shape. This suggests that its value should be in the upper range of previous auction prices.

2. Previous Auction Prices: Looking at previous auction prices, we can see that they have varied considerably. For example, in 2014 it sold for 200 euros, and in 2020 for 170 euros. However, there are also lower auction prices, such as 32 euros in 2012.

3. Average Auction Price: The average auction price for this coin is 99.56 euros, which can serve as a good reference point.

4. Current Starting Price: The starting price is 35 euros, which is quite low compared to previous auction prices.

5. Sales Trends: The coin has been auctioned 28 times, of which it has sold 12 times. This indicates a moderate interest in the coin, which may influence its price.

Given all this, an estimated maximum purchase price could be in the range of 120 to 150 euros, considering that the condition is good and that previous auction prices have reached higher figures. However, since the starting price is 35 euros, the competition in the auction may not be very intense, which could result in a lower final price.

Therefore, a reasonable maximum purchase price could be 120 euros.

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 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:
- It has been auctioned 13 times in the past, of which it has sold 6 times. This suggests that there is moderate interest in the coin.
- The average starting price in previous auctions is 46.54 euros, and the average hammer price is 48.17 euros. This indicates that, in general, coins of this reference tend to sell close to these values.

3. Previous Prices:
- In past auctions, hammer prices have varied. For example, in 2014 it sold for 70 euros with a condition of 90, indicating that a higher condition can lead to significantly higher prices.
- In other auctions, with lower conditions (75), the hammer prices have been lower, such as 35 euros.

4. Current Starting Price: The starting price is 50 euros, which is a good starting point.

Given that the condition of the coin is relatively good (80), and considering the history of hammer prices and interest in the coin, an estimated maximum purchase price could be positioned above the average hammer price.

Estimated Maximum Purchase Price:
We could estimate a maximum purchase price around 70-80 euros. This is based on the fact that, although the average hammer price is lower, the good condition and interest in the coin could justify a higher price in this auction.

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 of 70 (VF-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Starting Price and Average Hammer Price: The current starting price is 75 euros, and the average hammer price in previous auctions is 164.23 euros. This suggests that, in general, coins of this reference tend to sell for a significantly higher price than their starting price.

3. Auction History: In the auction history, there have been variations in hammer prices. For example, in 2014, a coin with a similar condition was sold for 110 euros, and in 2018, a coin of the same reference was sold for 210 euros. This indicates that there is a considerable range in hammer prices.

4. Recent Trends: In the most recent auction of 2022, the coin was sold for 75 euros, which matches the current starting price. However, in previous auctions, higher prices have been reached, suggesting that there could be potential for an increase in the hammer price.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 150 to 200 euros, considering that the condition is a limiting factor and that the price history shows that similar coins have reached higher prices in the past.

Therefore, a reasonable maximum purchase price could be 180 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 75 (VF), which indicates that it is in an acceptable state, but not of the highest quality.

2. Auction History:
- The average hammer price in previous auctions is 40.15 euros.
- The last auction where the coin was sold had a hammer price of 35 euros with a condition of 80.
- In previous auctions, hammer prices have ranged from 20 euros to 120 euros, depending on the condition.

3. Starting Price: The current starting price is 30 euros, which is a good starting point.

4. Price Trends: Observing previous hammer prices, it seems that the coin can reach higher prices depending on demand and condition.

Given that the condition of this coin is 75 and considering the average hammer price and previous auction prices, an estimated maximum purchase price could be around 50-60 euros. This is based on the fact that, although the condition is not the best, there is a price history suggesting it could reach a higher value in the market.

Therefore, an estimated maximum purchase price could be 60 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 (VF), indicating that it is in fairly good shape, but not the best possible condition.

2. Auction History:
- The average hammer price in the past has been 35.38 euros.
- The average starting price has been 36.73 euros.
- Coins with the same condition (75) have been auctioned in the past, and hammer prices have varied, with examples around 29.03 euros and 38 euros.

3. Recent Starting and Hammer Prices: In the most recent auctions, starting prices have ranged from 20 to 100 euros, with hammer prices reaching up to 110 euros for coins in better condition.

4. Market Trends: Given that the coin has been auctioned 69 times and has a 52% sell-through rate, this suggests there is moderate interest in this coin.

Based on these factors, an estimated maximum purchase price could be in the range of 50 to 70 euros. This is because the starting price is 50 euros, and considering the auction history and current condition, a price of up to 70 euros could be reasonable for a buyer looking to secure the coin in a VF condition.

Therefore, the estimated maximum purchase price would be 70 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 rating of 75 (MBC), which indicates that it is in fairly good shape, but not the best possible condition.

2. Auction History:
- The average starting price from previous auctions is 36.01 euros, and the average hammer price is 49.88 euros.
- In the past, coins with a similar condition (75) have been auctioned, and the hammer prices have varied, with some reaching up to 180 euros in an auction.

3. Price Trends:
- The last auction for a coin with a condition of 85 had a hammer price of 55 euros, suggesting that the value may increase with better condition.
- The highest auction price for a condition of 75 was 180 euros, but that seems to be an exceptional case.

4. Current Starting Price: The starting price is 50 euros, indicating that the seller has reasonable price expectations.

Based on these factors, an estimated maximum purchase price could be in the range of 70 to 90 euros, considering that the condition is good and there is a price history that supports this estimate. However, since the starting price is 50 euros, it is likely that the hammer price will not significantly exceed this value unless there is active competition among bidders.

Therefore, a reasonable maximum purchase price could be 80 euros.

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 75 (MBC), indicating that it is in an acceptable state, but not among the best qualities.

2. Auction History:
- The average hammer price for coins of similar condition (75) has been approximately 38.58 euros.
- In previous auctions, hammer prices for coins with a grade of 75 have varied, but hammer prices of up to 59.68 euros have been seen in the past.

3. Current Starting Price: The starting price is 50 euros, which may influence bidder interest.

4. Recent Trends: In recent auctions, hammer prices have exceeded the starting price, suggesting that there is demand for this coin.

5. Comparison with Previous Prices: The coin has reached hammer prices of up to 85 euros in recent auctions, although in slightly better condition.

Taking all these factors into account, an estimated maximum purchase price could be around 60-70 euros. This is based on the historical hammer prices for coins of similar condition and the current interest in the coin. However, since the starting price is 50 euros, bidders may be willing to pay a little more, especially if there is competition in the auction.