To estimate a maximum purchase price for the coin in question, we can analyze the provided data, including the starting price, the average hammer price, and previous prices from similar auctions.

1. Current Data:
- Starting price: €300
- Condition of this coin: 75 (MBC)
- Average hammer price: €398.09

2. Analysis of Previous Prices:
- The coin has been auctioned 27 times, of which it has sold 23 times.
- The average starting price of previous auctions is €261.85, and the average hammer price is €398.09.
- Looking at previous hammer prices, there are examples of hammer prices that vary significantly, especially for coins in better condition (for example, a hammer price of €1200 for a coin in condition 95).

3. Comparison of Conditions:
- The condition of 75 (MBC) is lower than the higher conditions that have reached significant hammer prices. However, there are examples of coins with similar conditions that have sold for reasonable prices (for example, €340 and €290).

4. Estimation of Maximum Price:
- Given that the average hammer price is €398.09 and considering that the condition of this coin is 75, a reasonable hammer price could be in the range of €300 to €450.
- Taking into account the starting price of €300 and the interest from collectors, a maximum purchase price could be around €450.

Conclusion: Based on the analysis of the data, an estimated maximum purchase price for this coin could be approximately €450.

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 95 (EBC+), which indicates that it is in very 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 (95 or 100), we can see that auction prices have varied, but generally, coins in EBC+ condition have reached auction prices ranging from 200 to 400 euros.

3. Starting Price and Average Hammer Price: The current starting price is 300 euros, and the average hammer price in the past has been approximately 249.64 euros. However, the hammer price can be higher depending on the demand at the auction.

4. Recent Trends: In the most recent auctions, we have seen hammer prices reaching up to 400 euros for coins in similar conditions.

Based on these factors, an estimated maximum purchase price could be in the range of 350 to 400 euros, considering that the coin is in good condition and there is market interest. Therefore, a reasonable maximum purchase price could be approximately 375 euros.

To estimate a maximum purchase price for the coin in question, we can analyze the provided data, especially the previous auction prices and the current condition of the coin.

1. Current Condition: The coin has a condition of 80 (MBC+), indicating that it is in quite good shape.

2. Previous Auction Prices:
- In previous auctions, the hammer prices for coins with a similar condition (80) have varied. For example:
- On 2022-10-19, a coin with a condition of 80 was auctioned for 140 euros.
- On 2022-11-16, another coin with a condition of 80 had no recorded hammer price, but the starting price was 110 euros.
- On 2023-12-13, a coin with a condition of 80 was auctioned for 190 euros.

3. Average Hammer Price: The average hammer price for this coin is 161.33 euros, which is also a good indicator.

4. Starting Price: The current starting price is 125 euros, which is reasonable compared to previous hammer prices.

5. Trends: Observing the trends, it seems that coins with a condition of 80 have had a hammer price range that can reach up to 190 euros in the highest case.

### Maximum Purchase Price Estimation
Given that the condition of the coin is 80 and considering the previous hammer prices, a reasonable maximum purchase price could be in the range of 180 to 200 euros. This is based on the highest recorded hammer price for a coin with a similar condition.

Therefore, an estimated maximum purchase price could be approximately 200 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 80 (MBC+), indicating that it is in relatively good shape, but not among the best qualities.

2. Auction History:
- The average hammer price in previous auctions is 411.1 euros.
- The last auction for this coin had a hammer price of 800 euros, suggesting significant interest in coins of this reference, especially in good condition.
- Previous hammer prices for coins with similar conditions (80-85) have ranged between 226 and 600 euros.

3. Starting Price and Average Starting Price: The current starting price is 300 euros, and the average starting price in the past has been 280.77 euros.

4. Sales Trends: The coin has sold in 11 of the last 14 auctions, indicating good demand.

Based on this data, an estimated maximum purchase price could be in the range of 450 to 600 euros. This is based on the interest shown in previous auctions and the average hammer price. Given that the condition is 80, a more conservative price could be around 450 euros, while if there is strong competition in the auction, it could reach up to 600 euros.

Therefore, a reasonable estimated maximum purchase price would be 550 euros.

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+). 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 499.14 euros.
- The condition of coins auctioned in the past varies, but there are examples of coins with similar conditions (80) that have sold for prices ranging between 300 and 500 euros.
- In recent auctions, hammer prices of up to 1200 euros have been seen for coins in better condition (condition 95 and 100).

3. Starting and Hammer Price:
- The current starting price is 350 euros, which is a reasonable starting point.
- Since the average hammer price is significantly higher, this suggests that there is potential for the coin to sell for a higher price.

4. Recent Trends:
- In the most 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 for the coin could be in the range of 500 to 600 euros. This is based on the auction price history and the current condition of the coin. However, it is important to consider the competition in the auction and the current market demand, which could influence the final price.

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), which indicates that it is in fairly good shape, but not the best possible condition.

2. Auction History: The coin has been auctioned 4 times in the past and has sold on all occasions. This suggests that there is consistent interest in the coin.

3. Previous Auction Prices:
- In 2019, the coin was auctioned with a starting price of 250 euros and sold for 300 euros.
- In 2017, the starting price was 900 euros, with a final bid of 1400 euros, but there is no information on the condition.
- In 2014, the starting price was 450 euros and it sold for 520 euros.
- In 2017, another auction had a starting price of 350 euros and it sold for 360 euros.

4. Average Starting and Final Prices: The average starting price is 450 euros and the average final price is 645 euros. This indicates that, in general, coins of this reference tend to sell above their starting price.

5. Current Starting Price: The current starting price is 300 euros, which is lower than the average starting price of 450 euros.

Given that the condition is 75 (VF) and considering the price history, an estimated maximum purchase price could be in a range between the average final price (645 euros) and the highest recorded final price (1400 euros), adjusted for condition.

Taking all these factors into account, an estimated maximum purchase price could be around 600 to 700 euros. This is based on historical interest 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 is in a condition of 90 (EF), indicating that it is in quite good shape.

2. Starting Price and Average Hammer Price: The starting price is 325 euros, and the average hammer price in previous auctions is 318.09 euros. This suggests that the hammer price tends to be close to the starting price.

3. Sales History: In the past, coins with a similar condition (around 90) have reached hammer prices that varied, but some recent examples show hammer prices of up to 400 euros for coins in similar conditions.

4. Recent Trends: Observing recent auctions, there is an increase in hammer prices for coins in good condition, which could indicate a rising trend in interest and value for these coins.

5. Comparison with Previous Prices: In previous auctions, coins with a condition of 90 have had hammer prices ranging between 350 and 400 euros.

Based on these factors, an estimated maximum purchase price for this coin could be between 400 and 450 euros, considering that interest in coins in good condition is on the rise and that the hammer price could exceed the starting price. However, it is important to keep in mind that the final price will depend on the competition in the auction and the specific demand at that moment.

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 (EF+), indicating that it is in very good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Auction History: The coin has been auctioned 64 times, of which it has sold 60 times. This indicates good demand and sustained interest in the coin.

3. Previous Prices: Previous hammer prices for coins with the same condition (95) have varied, but generally, they have been in a range of 270 to 380 euros. For example, in recent auctions, the hammer prices have been 305, 320, 360, and 380 euros.

4. Starting Price and Average Hammer Price: The current starting price is 300 euros, and the average hammer price in the past has been 254.55 euros. However, given the high condition and interest in the coin, it is reasonable to expect that the hammer price will be above this average.

5. Recent Trends: In the most recent auctions, the hammer prices have been in the range of 360 to 380 euros, suggesting that interest in the coin has increased.

Based on these factors, an estimated maximum purchase price for this coin could be between 360 and 400 euros. This reflects both the high condition and the price trend in recent auctions. Therefore, a reasonable maximum purchase price could be 380 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.

2. Historical Prices: By looking at the auction prices of coins with similar conditions (70-80), we can see that the auction prices have varied. For example:
- In previous auctions, coins with a condition of 70 have reached hammer prices of up to 340 euros.
- Coins with a condition of 80 have reached hammer prices of up to 650 euros.

3. Starting Price and Average Price: The current starting price is 200 euros, and the average hammer price in the past has been 553.17 euros. This suggests that there is potential for an increase in the hammer price.

4. Sales Trends: The coin has been auctioned 125 times, with a high sales percentage (111 out of 125). This indicates a consistent demand.

5. Estimation Based on Previous Prices: Given that the condition is 70, a reasonable hammer price could be in the range of 300 to 400 euros, based on previous price trends for coins of similar condition.

### Final Estimation
Taking all these factors into account, an estimated maximum purchase price for this coin could be between 350 and 400 euros. This would allow for competitive bidding in the auction without exceeding a reasonable limit based on 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 rating of 75 (MBC), indicating that it is in fairly good shape, although not the best possible condition.

2. Auction History:
- It has been auctioned 6 times in the past, of which it has sold 5 times. This indicates good demand.
- The average hammer price in previous auctions is 668 euros, suggesting that, in general, buyers are willing to pay a considerably higher price than the starting price.

3. Previous Prices:
- In past auctions, hammer prices have varied, but there are examples of auctions that reached up to 1200 euros in similar conditions (85).
- The lowest hammer price in previous auctions was 360 euros, indicating that even in lower conditions, the coin has significant value.

4. Starting Price and Estimates:
- The current starting price is 350 euros, which is reasonable given the price history.
- The estimated hammer price for this auction is 400 euros, which is also a good indicator.

Based on these factors, an estimated maximum purchase price could be in the range of 700 to 800 euros, considering that the average hammer price has been 668 euros and that demand appears to be strong. This also takes into account that the current condition is slightly lower than the higher conditions that have reached higher prices in the past.

Therefore, a reasonable 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 30 (BC+), which indicates that it is in fairly low condition. This will negatively affect its value compared to coins in better condition.

2. Auction History:
- In the past, coins of the same reference with higher conditions (85 and 75) have been auctioned for 800 and 440 euros, respectively.
- The last auction with a condition of 75 had a hammer price of 440 euros, suggesting that the value of the coin decreases significantly with a lower condition.

3. Starting Price and Average Prices:
- The current starting price is 300 euros, and the average hammer price in previous auctions has been 620 euros, but this refers to coins in better condition.

4. Sales Trends: The coin has sold in 3 of the last 4 auctions, indicating interest in the coin, although the current condition may limit the price.

Given that the condition of the coin is quite low (30), and considering the hammer prices of coins in better condition, an estimated maximum purchase price could be set at a lower range.

Estimated Maximum Purchase Price:
Taking all these factors into account, a reasonable maximum purchase price could be between 150 and 250 euros. This is based on the need to adjust the value downward due to the condition and the interest shown in previous auctions.

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

1. Current Condition: The coin is in a condition of 90 (EF), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins in lower conditions.

2. Auction History:
- The average hammer price for similar coins in the past has been 313.51 euros.
- In previous auctions, coins with a condition of 90 have reached hammer prices that varied, but some examples are:
- 341 euros (2020-10-21)
- 380 euros (2020-05-26)
- 360 euros (2021-06-22)
- 400 euros (2022-03-10)
- 440 euros (2023-03-16)

3. Starting Price and Estimated Price:
- The current starting price is 300 euros, and the estimated price is 500 euros. This suggests that there are expectations for the coin to sell at a considerably higher price.

4. Recent Trends: In the most recent auctions, hammer prices have been in a high range, indicating increasing demand.

Based on these factors, an estimated maximum purchase price could be in the range of 400 to 500 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate.

Therefore, a reasonable maximum purchase price could be 450 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 relatively good shape, but not among the highest qualities.

2. Starting Price: The starting price is 400 euros, which is an important starting point.

3. Auction History:
- The average hammer price in previous auctions is 388.1 euros.
- In past auctions, hammer prices have varied, but there are examples of sales above 400 euros, especially for coins in better condition (for example, 750 euros for a coin with a condition rating of 95).

4. Recent Trends: In the most recent auctions, hammer prices have been around 550 euros for coins with similar condition (85).

5. Supply and Demand: The coin has been auctioned 65 times, with a sell-through rate of 96.9%, indicating good demand.

Based on these factors, an estimated maximum purchase price could be around 500-600 euros. This is based on the historical hammer prices for coins of similar condition and the price trends in recent auctions.

Therefore, a reasonable maximum purchase price could be 550 euros.

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

1. Current Condition: The coin has a condition rating of 75 (MBC), indicating that it is in fairly good shape, although not the best possible condition.

2. Auction History:
- In the past, the coin has been auctioned 5 times and has sold in all of them.
- The hammer prices have varied, with a maximum of 445 euros and a minimum of 288 euros.
- The average hammer price in previous auctions is approximately 382.6 euros.

3. Current Starting Price: The starting price is 400 euros, which is slightly higher than the average hammer price in previous auctions.

4. Price Trends:
- In previous auctions, the hammer price has ranged from 288 to 445 euros, suggesting that the market is willing to pay within that range.
- The condition of 75 is comparable to previous auctions where coins with similar conditions were sold.

5. Estimation: Given that the starting price is 400 euros and considering the history of hammer prices, an estimated maximum purchase price could be around 450 euros, which is slightly higher than the starting price and aligns with the range of previous hammer prices.

Therefore, the estimated maximum purchase price for this coin could be 450 euros.