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 75 (MBC), indicating that it is in an acceptable state, but not of the highest quality.

2. Historical Prices:
- The average hammer price for coins of similar condition (75) has varied, but there are examples of auctions reaching up to 650 euros (as in the 2018 auction).
- In previous auctions, hammer prices for coins in condition 75 have ranged between 90 and 650 euros.

3. Starting Price: The starting price is 50 euros, which is relatively low compared to previous hammer prices.

4. Sales Trends: The coin has been auctioned 109 times, with a 71% sell-through rate (78 times sold). This suggests there is consistent interest in this coin.

5. Average Prices: The average hammer price for all auctions is 552.49 euros, indicating that, in general, coins of this reference have good market value.

### Estimation of Maximum Purchase Price
Given that the coin has a condition of 75 and considering previous hammer prices, a reasonable maximum purchase price could be in the range of 300 to 400 euros. This is based on the fact that, although the condition is not the highest, there is a price history suggesting it can reach higher figures at auctions.

Therefore, an estimated maximum purchase price could be 350 euros. This price reflects a balance between the current condition and the historical interest in the coin.

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 (VF), indicating that it is in quite good shape. This generally increases its value compared to coins in lower condition.

2. Auction History:
- It has been auctioned 3 times in the past, of which it has sold 2 times. This suggests that there is interest in the coin, which may positively influence its price.
- The average hammer price in previous auctions is 75 euros, which sets a benchmark.

3. Current Starting Price: The starting price is 100 euros, indicating that the seller expects a higher price than the previous average hammer price.

4. Previous Prices:
- In the April 2021 auction, the coin was estimated at 60 euros and sold for 75 euros, suggesting that the market is willing to pay a bit more than the estimated price.
- In the February 2022 auction, the starting price was 25 euros, but the estimated price was 40 euros, indicating that interest may have increased since then.

5. Market Trends: Given that the average starting price has risen to 100 euros, this may reflect an increase in demand or perceived value of the coin.

Based on these factors, an estimated maximum purchase price could be positioned between the previous average hammer price (75 euros) and the current starting price (100 euros). Given that the condition is good and there is a history of sales, a reasonable maximum price could be approximately 90 euros. This allows for some competition in the auction while also staying below the starting price to avoid overpaying.

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

1. Current starting price: 350 euros.
2. Condition of the coin: 80 (MBC+), indicating good preservation.
3. Auction history:
- In 2012, the coin was auctioned with a starting price of 90 euros and sold for 140 euros (condition 75).
- In 2013, the starting price was 300 euros and it sold for 480 euros (condition not specified).
- In 2014, the starting price was 280 euros, but the final price was not recorded (condition not specified).

4. Average starting and final prices: The average starting price is 255 euros and the average final price is 310 euros.

5. Price trends: The coin has shown an increase in final prices in previous auctions, especially in 2013, where it sold for 480 euros, suggesting there is significant interest in this coin.

Given that the current condition is better than in previous auctions and considering the starting price of 350 euros, an estimated maximum purchase price could be set above the average final price, but it should also take into account market interest.

Estimated maximum purchase price: It could be reasonable to estimate a maximum purchase price around 450-500 euros, given the price history and the good condition of the coin. This would allow for competitive bidding in the auction without exceeding the market value observed in previous auctions.

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 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 has been 669.28 euros.
- In the past, coins with similar conditions (around 70) have sold for prices that varied considerably, but some relevant examples are:
- In 2011, a coin with a condition of 75 sold for 210 euros.
- In 2013, another coin with a condition of 75 sold for 120 euros.
- In 2016, a coin with a condition of 75 sold for 372.1 euros.
- In 2021, a coin with a condition of 70 sold for 190 euros.

3. Starting Price and Average Starting Price:
- The current starting price is 150 euros, which is quite low compared to the average hammer price of 669.28 euros.
- The average starting price of 375.41 euros also suggests that there is potential for an increase in the hammer price.

4. Recent Trends:
- In recent auctions, hammer prices have shown a trend of being higher, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price could be in the range of 300 to 500 euros. This is based on the historical hammer prices for coins of similar condition and the potential for an increase in the hammer price depending on demand and collector interest.

Therefore, a reasonable estimated maximum purchase price could be 450 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 70 (VF-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price for this coin in the past is 4632.75 euros.
- The coin has been auctioned 41 times, of which it has sold 37 times, indicating good demand.
- Previous hammer prices varied significantly, with some reaching very high figures (for example, 27394.88 euros in 2011).

3. Current Starting Price: The starting price is 750 euros, which may indicate an attractive initial price.

4. Comparison with Previous Prices:
- In previous auctions, coins with similar conditions (75) have reached hammer prices of around 1500 to 5400 euros.
- The last auction with a condition of 80 had a hammer price of 2500 euros.

Given all this, and considering that the condition of the coin is slightly lower than that of some of the more successful auctions, an estimated maximum purchase price could be in the range of 2000 to 3000 euros. This is based on the hammer price history and the current condition of the coin.

Therefore, an estimated maximum purchase price could be 2500 euros.

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

1. Current starting price: 300 euros.
2. Coin grade: 75 (MBC), indicating a medium-good condition.
3. Auction history:
- In 2016, a coin with a grade of 75 sold for 2034.32 euros.
- In 2023, a coin with a grade of 80 had an estimated price of 1300 euros, but it did not sell.
- In 2024, a coin with a grade of 80 sold for 420 euros.

4. Average prices:
- Average starting price: 696.24 euros.
- Average hammer price: 1227.16 euros.

Given that the grade of the current coin is 75, which is lower than some coins that have sold in the past (80), it is reasonable to adjust the estimated price downward compared to previous hammer prices.

Considering the starting price of 300 euros and the price history, a maximum purchase price could be set in a range between the average hammer price and the hammer price of the coin with a grade of 75.

A conservative calculation could be:

- Average hammer price (1227.16 euros) adjusted for the grade: since the grade is 75, we could estimate 60-70% of this value, which gives us a range of approximately 736.30 to 858.01 euros.

However, since the starting price is 300 euros, a reasonable maximum purchase price could be:

Estimated maximum purchase price: 700 euros.

This price reflects a balance between the price history, the current grade, and the starting price.

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 increases its value compared to coins with lower conditions.

2. Auction History:
- It has been auctioned 4 times in the past, of which it has sold 2 times. This suggests that there is interest in the coin, although there is also a 50% no-sale rate, which may indicate that the starting price is sometimes too high.
- The average starting price in previous auctions is 57.5 euros, and the average hammer price is 72 euros. This provides a reference range for the coin's value.

3. Previous Prices:
- In the April 2020 auction, the coin started at 20 euros and sold for 72 euros, indicating that interest may be high if the starting price is attractive.
- In December 2019, the starting price was 60 euros, but it did not sell, which may indicate that the starting price was too high for market interest at that time.
- In October 2018, the starting price was 120 euros, but no sale was recorded, suggesting that the price was excessive.

4. Current Starting Price: The current starting price is 30 euros, which is significantly lower than the average starting price of previous auctions. This could attract more buyers.

Based on these factors, an estimated maximum purchase price could be in a range between the previous average hammer price (72 euros) and a bit more, given that the condition is good and the starting price is attractive.

Therefore, an estimated maximum purchase price could be around 80-90 euros. This would allow a competitive buyer in the auction, considering the good condition and historical interest in the coin.

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. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- It has been auctioned 6 times in the past, of which 5 have been sold. This indicates a consistent interest in the coin.
- The average hammer price in previous auctions is 143.75 euros, providing a good reference point.
- In past auctions, hammer prices have varied, with a maximum of 220 euros in 2021 and a minimum of 80 euros in 2011.

3. Current Starting Price: The starting price is 40 euros, which is significantly lower than the average hammer price. This may indicate a good buying opportunity.

4. Price Trends: The average starting price in previous auctions is 86.67 euros, suggesting that the current starting price is low compared to the historical average.

Based on these factors, an estimated maximum purchase price could be positioned between the average hammer price and the highest price reached in previous auctions. Given that the condition is 70, it is reasonable to adjust the price towards the lower end of that range.

Estimated Maximum Purchase Price: It may be reasonable to consider a maximum purchase price of around 150 euros, taking into account the price history and the current condition of the coin.

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 fairly good shape, but not the best possible condition.

2. Previous Auction Prices:
- In 2012, coins with a condition of 90 were auctioned, reaching hammer prices of up to 950 euros.
- In 2013, a coin with a condition of 75 was auctioned with a starting price of 192.94 euros, although the final hammer price is not reported.
- In 2016, a coin with a condition of 50 sold for 194.51 euros, indicating that the price can vary significantly with the condition.

3. Starting Price and Average Price:
- The current starting price is 70 euros, which is relatively low compared to the average starting price of 191.89 euros and the average hammer price of 488.17 euros.

4. Sales History: The coin has been auctioned 6 times, of which it has sold 4 times, suggesting a moderate interest in the coin.

Given that the condition of the coin is 75 and considering the hammer prices of similar coins in the past, an estimated maximum purchase price could be in the range of 200 to 300 euros. This is based on the fact that, although the condition is not the highest, the interest in the coin and previous hammer prices suggest that it could reach a higher price than the current starting price.

Therefore, an estimated maximum purchase price could be 250 euros.

To estimate a maximum purchase price for the coin in question, let's consider the following factors:

1. Starting Price: 35 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 75 (MBC), indicating that it is in good shape, but not a top-quality piece (FDC).
3. Auction History: The coin has been auctioned once and sold on that occasion, suggesting there is interest in the coin.
4. Average Hammer Price: Not provided, but since it has sold once, we could assume that the hammer price was similar to the starting price, given that there are no previous price data.

Since the condition is good (75 MBC) and it has a positive auction history, we could estimate that the hammer price might be slightly higher than the starting price, especially if there is interest in the coin.

Taking these factors into account, an estimated maximum purchase price could be in the range of 50 to 70 euros, depending on the demand at the auction. However, since there are no previous price data, it is difficult to be more precise. A reasonable maximum purchase price could be 60 euros.

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

2. Auction History:
- The coin has been auctioned 8 times in the past, of which it has sold 5 times. This indicates a moderate interest in the coin.
- The average starting price in previous auctions is 250.69 euros, and the average hammer price is 244.66 euros. This suggests that, in general, coins of this reference tend to sell for a price close to these values.

3. Previous Prices:
- Previous hammer prices for coins with similar conditions (75) have been 593.68 euros (2013), 119.37 euros (2016), and 40 euros (2021). This shows a great variability in prices, but also indicates that under similar conditions, prices can be significantly higher.

4. Current Starting Price: The starting price is 100 euros, which is relatively low compared to the average starting price of previous auctions.

5. Market Trends: Since there are no auctions scheduled in the coming days, this could increase interest in the current coin, as collectors may be more willing to bid.

Based on these factors, an estimated maximum purchase price could be in the range of 200 to 300 euros, considering that the condition is 70 and that the average hammer price in the past has been approximately 244.66 euros.

Therefore, a reasonable maximum purchase price could be 250 euros. This aligns with the average hammer price and takes into account the current condition of the coin.

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 among the best qualities. This may influence the price, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price in previous auctions is 163.75 euros, indicating that, in general, buyers are willing to pay more than the starting price.
- In the most recent auction (2022), the coin sold for 95 euros, which may be a good indicator of its current value.

3. Starting Price: The current starting price is 75 euros. This can be a good starting point, but given the history of hammer prices, it is likely that the final price will be higher.

4. Comparison with Previous Prices:
- In 2016, the coin sold for 100 euros with a condition of 75, suggesting that the price may be similar or even higher today, given that the condition is the same.
- In 2021, a price of 100 euros was estimated for a condition of 70, reinforcing the idea that the price could be in that range.

Taking all these factors into account, an estimated maximum purchase price could be between 100 and 120 euros. This is based on the history of hammer prices and the current condition of the coin. Therefore, a reasonable maximum purchase price could be 120 euros.

To estimate a maximum purchase price for the coin in question, let's consider several factors:

1. Starting Price: 70 euros. This is the initial price of the auction.
2. Condition: The coin has a condition rating of 75 (MBC), indicating that it is in an acceptable state, but not excellent.
3. Auction History:
- It has been auctioned 3 times in the past, of which it has sold 2 times.
- The average hammer price in previous auctions is 328 euros, suggesting that, despite a lower starting price, interest in the coin may be high.
4. Previous Prices: In the June 2022 auction, the coin sold for 328 euros with a condition rating of 85, which is higher than the current one.

Given that the current condition is 75, and considering that the average hammer price is significantly higher than the starting price, we can estimate that the hammer price could be in a lower range than 328 euros, but still considerably higher than the starting price.

Taking all these factors into account, an estimated maximum purchase price could be between 200 and 250 euros, depending on collector interest and competition in the auction. This is based on the price history and the current condition of the coin.