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 80 (MS+), indicating that it is in relatively good shape. This can positively influence its price.

2. Starting Price and Average Hammer Price: The starting price is 225 euros, and the average hammer price in previous auctions is 228.52 euros. This suggests that the hammer price tends to be close to the starting price.

3. Auction History: The coin has been auctioned 38 times, of which it has sold 34 times. This indicates good demand and sustained interest in the coin.

4. Previous Prices: By looking at previous hammer prices for coins with similar conditions, we can see that they have reached hammer prices that varied, but some have exceeded 200 euros, especially in higher conditions.

5. Recent Trends: In the most recent auctions, hammer prices have been quite high, with some reaching up to 650 euros in similar conditions.

Given all this, an estimated maximum purchase price could be in the range of 250 to 300 euros, considering that the condition is good and that interest in the coin seems to be high. This also takes into account the starting price and the history of hammer prices.

Therefore, a reasonable maximum purchase price could be approximately 280 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 fairly good shape, but not the best possible condition.

2. Auction History:
- The average hammer price for this coin in the past is 242 euros.
- In previous auctions, hammer prices have varied, with a maximum of 900 euros in a recent auction, although this may be an exceptional case.
- Most hammer prices for similar conditions (75) have been in the range of 170 to 280 euros.

3. Starting Price: The current starting price is 250 euros, suggesting that the seller has expectations for a hammer price in that range.

4. Market Trends: Given that the coin has been auctioned 29 times and has had a good sales percentage (26 out of 29), this indicates a consistent interest in the coin.

Based on these factors, an estimated maximum purchase price could be in the range of 280 to 320 euros, considering that the average hammer price is 242 euros and there is potential for the price to rise due to demand and the coin's condition. However, it is important to keep in mind that the final price will depend on the competition in the auction and the willingness of other bidders.

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

1. Current starting price: 200 euros.
2. Current grade: 70 (MBC-), which is an acceptable grade, but not excellent.
3. Auction history:
- In the March 2023 auction, the coin started at 200 euros and sold for 400 euros with a grade of 90.
- In the May 2024 auction, it started at 250 euros and sold for 300 euros with a grade of 70.
- In the September 2024 auction, it started at 250 euros with an estimated price of 350 euros and a grade of 75.

4. Average hammer price: 350 euros, indicating that, in general, coins of this reference tend to sell for a price higher than the starting price.

5. Trends: The coin had a higher hammer price in the March 2023 auction, suggesting that there is significant interest in this reference, especially in better conditions.

Given that the current grade of the coin is 70, which is lower than that of the March 2023 auction (90), but similar to that of May 2024 (70), we can infer that the hammer price could be in a lower range than 400 euros, but it could still be competitive.

Estimation of the maximum purchase price:
- Considering the average hammer price of 350 euros and the grade of 70, a reasonable maximum purchase price could be between 250 and 300 euros, given that the starting price is 200 euros and there is interest in the coin.

Therefore, an estimated maximum purchase price could be 300 euros.

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

1. Starting price: 225 euros.
2. Average auction price in the past: 420 euros.
3. Condition of the coin: 70 (MBC-), which indicates good preservation, although it is not the best.
4. Auction history: It has been auctioned once before, and it sold for 420 euros.

Given that the average auction price in the past has been 420 euros and the coin has a condition of 70, which is quite good, we can infer that interest in this coin could be high.

Considering that the starting price is 225 euros and the average auction price has been 420 euros, an estimated maximum purchase price could be set within a range between the starting price and the average auction price.

A reasonable approach would be to establish a maximum purchase price that does not exceed the average auction price but also takes into account the starting price. Since the starting price is 225 euros, a maximum purchase price could be slightly higher than this, but not as high as the average auction price.

Therefore, an estimated maximum purchase price could be around 350 euros. This allows for a profit margin for the seller and remains within a reasonable range based on the auction history.

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

2. Historical Prices: By looking at previous auction prices for coins with a similar condition (80), we can see that the auction price has varied but has reached significant figures. For example:
- In 2021, a coin with a condition of 80 was auctioned for 240 euros.
- In 2020, it was auctioned for 210 euros.
- In 2016, it was also auctioned for 145 euros.

3. Average Auction Price: The average auction price for this coin is 267.21 euros, suggesting that, in general, buyers are willing to pay close to this figure.

4. Starting Price and Estimates: The starting price is 250 euros, and the average starting price is 156.72 euros. This indicates that the current starting price is relatively high, but not unusual for a coin in good condition.

5. Recent Trends: In the most recent auctions, the hammer prices have been quite high, suggesting an upward trend in interest for this coin.

Based on these factors, an estimated maximum purchase price could be around 300 euros. This is based on the condition of the coin, previous auction prices, and the current trend in the market. However, it is important to note that the final price may vary depending on competition in the auction and the interest of other buyers.

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 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 they have reached auction prices that vary, but are generally above the current starting price of 250 euros. For example:
- In the 2021 auction, a coin with a condition of 80 sold for 240 euros.
- In the 2020 auction, a coin with a condition of 80 sold for 210 euros.

3. Price Trends: The average auction price for this coin is 267.21 euros, suggesting that, in general, coins of this reference tend to sell for above their starting price.

4. Starting Price and Estimates: The starting price is 250 euros, and the average starting price in previous auctions is 156.72 euros. This indicates that the current starting price is relatively high, but also that there is interest in this coin.

5. Future Auctions: There are 2 auctions scheduled in the coming days, which could increase competition and, therefore, the final auction price.

Taking all these factors into account, an estimated maximum purchase price could be around 300-350 euros. This is based on the highest auction price observed in previous auctions and the good condition of the coin. However, the final price will depend on the competition in the auction and the interest from other bidders.

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 fairly good shape, but not the best possible condition.

2. Auction History:
- The average hammer price for this coin is 545.03 euros.
- In previous auctions, hammer prices have varied, but there are recent examples where the coin has reached hammer prices of up to 3200 euros (in the case of a condition rating of 85).
- The last auction with a similar condition (80) had a hammer price of 550 euros.

3. Starting Price and Average Starting Price:
- The current starting price is 300 euros, which is slightly higher than the average starting price of 258.09 euros.

4. Sales Trends: The coin has been sold in 34 out of the 36 times it has been auctioned, indicating good demand.

5. Projections: Given that the coin has a condition rating of 80 and considering the price history, a hammer price around 550-600 euros seems reasonable, as it is consistent with the average hammer price and the behavior of previous auctions.

### Estimated Maximum Purchase Price
Taking all these factors into account, an estimated maximum purchase price for this coin could be between 600 and 700 euros. This would allow for competitive bidding in the auction without exceeding the historical hammer value for similar conditions.

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

2. Previous Auction Prices:
- The average hammer price for coins with similar conditions (around 70) has been approximately 270 to 300 euros in previous auctions.
- There are examples of coins with conditions of 70 that have sold for prices ranging from 200 to 480 euros, depending on demand and other factors.

3. Starting Price and Average Hammer Price:
- The current starting price is 250 euros, and the average hammer price in the past has been 435.18 euros. This suggests there is potential for an increase in the hammer price.

4. Recent Trends: In the most recent auctions, hammer prices have been quite high, even reaching 1300 euros in some cases, although this may be related to higher conditions.

5. Demand and Supply: The coin has been auctioned 34 times in the past, with a sell-through rate of 97% (33 out of 34). This indicates there is consistent interest in this coin.

Based on these factors, an estimated maximum purchase price could be between 400 and 500 euros, considering that the condition is a limiting factor and that the average hammer price in the past has been 435.18 euros. However, if there is strong competition in the auction, the price could exceed this estimate.

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:
- The average hammer price for this coin in the past is 494.09 euros.
- In previous auctions, hammer prices have varied, but there are examples of sales exceeding 700 euros, especially in similar or better conditions.

3. Starting Price and Average Starting Price:
- The current starting price is 300 euros, which is slightly higher than the average starting price of 250.31 euros. This may indicate an expectation of a higher hammer price.

4. Recent Trends: In the most recent auctions, there have been sales reaching significantly high prices, such as 2400 euros in a previous auction with a condition of 95.

5. Estimation Based on Condition and Previous Prices: Given that the coin's condition is 80 and considering that in the past it has reached hammer prices of up to 750 euros in similar conditions, we can estimate that the maximum purchase price could be in a high range.

### Final Estimation
Taking all these factors into account, an estimated maximum purchase price for this coin could be 700 to 800 euros. This is based on the hammer 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 80 (MS+). This is an important factor, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price for similar coins has been 359.16 euros.
- In previous auctions, coins with a similar condition (80) have reached hammer prices that varied, but some examples are:
- 240 euros (2019-09-19)
- 300 euros (2019-05-23)
- 260 euros (2019-10-17)
- 280 euros (2020-02-18)
- 360 euros (2022-04-27)
- 550 euros (2023-03-01)

3. Starting Price and Average Starting Price: The current starting price is 300 euros, and the average starting price in the past has been 240.72 euros.

4. Recent Trends: In the most recent auctions, hammer prices have shown an increase, reaching up to 800 euros in a 2022 auction.

Based on this data, an estimated maximum purchase price could be in the range of 400 to 600 euros, considering that the coin is in good condition and that interest in coins of this type seems to be increasing.

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, including auction history and previous hammer prices.

1. Current Condition: The coin has a condition rating of 85 (ebc-), indicating that it is in fairly good shape, but not the best possible condition.

2. Price History:
- The average hammer price for coins with a similar condition (85) in the past has been approximately 2,762.46 euros.
- In previous auctions, hammer prices for coins with a condition of 85 have varied, but there have been hammer prices of up to 3,300 euros (in the case of a coin with a condition of 95).

3. Starting Price: The starting price of the current auction is 2,000 euros, which is a reasonable starting point.

4. Sales Trends: The coin has been sold in 26 out of the last 30 auctions, indicating good demand.

5. Maximum Price Estimate: Given that the average hammer price is 2,762.46 euros and considering that the condition is 85, a reasonable maximum purchase price could be in the range of 3,000 to 3,500 euros, depending on the competition in the auction and the interest of other bidders.

Conclusion: An estimated maximum purchase price for this coin could be approximately 3,200 euros. This is based on the price history, current condition, and sales trend.