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

1. Starting price: 500 euros.
2. Current condition: 70 (VG-), which is good condition, although not the best.
3. Auction history: The coin has been auctioned 2 times in the past, and both times it has sold. The average hammer price in the past was 1600 euros, indicating significant interest in this coin.
4. Previous hammer price: In the June 2021 auction, the coin was estimated at 1500 euros and sold for 1800 euros, suggesting there is potential for price increase depending on demand.

Given that the current condition is slightly lower than that of the previous auction (70 vs. 75), and considering that the average hammer price is 1600 euros, a reasonable maximum purchase price could be in the range of 1200 to 1400 euros. This would allow for competitive bidding in the auction without exceeding the historical value of the coin.

Therefore, an estimated maximum purchase price could be 1300 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 context of the current auction.

1. Current starting price: 600 euros.
2. Average hammer price in the past: 678.48 euros.
3. Hammer price history:
- Hammer prices have varied, with some reaching up to 1200 euros in higher conservation conditions (such as 100 and 95).
- Most hammer prices fall between 550 and 850 euros, depending on the conservation.

4. Condition of the coin: There is no information on the current condition, which can significantly affect the price. However, by observing the hammer prices of coins with similar conditions in the past, we can make an estimation.

5. Price trends:
- In previous auctions, coins with conditions ranging from 80 to 95 have had hammer prices between 550 and 900 euros.
- The most recent auction shows a hammer price of 721 euros, suggesting that interest in this coin remains strong.

### Estimation of the maximum purchase price:
Given that the average hammer price is 678.48 euros and considering that the starting price is 600 euros, a reasonable maximum purchase price could be in the range of 800 to 900 euros, assuming the coin has an acceptable condition.

Therefore, an estimated maximum purchase price could be approximately 850 euros. This allows for a margin for competition in the auction and aligns with previous hammer prices.

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

1. Coin Condition: The coin has a condition rating of 80 (MBC+), indicating that it is in good condition. This generally translates to a higher price compared to coins with lower conditions.

2. Current Price and Previous Prices: The current starting price is 900 euros. In previous auctions, the average hammer price has been 302.33 euros, but there are also examples of significantly higher hammer prices, such as 1200 euros in a previous auction.

3. Price Trends: By observing the hammer prices of coins with similar conditions, we can see considerable variability. For example, in recent auctions, coins with conditions between 70 and 75 have reached hammer prices of up to 320 euros, while others with conditions of 50 have had lower hammer prices.

4. Demand and Supply: The coin has been auctioned 30 times, with a high sales percentage (28 out of 30). This suggests that there is consistent interest in this coin, which could increase its value in the current auction.

5. Comparison with Previous Prices: In the most recent auction, a coin with a condition of 70 sold for 320 euros. This suggests that, given the condition of the coin in question is higher, the hammer price could be considerably higher.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 1000 to 1200 euros, considering that the condition is good and there are precedents for high hammer prices in the past. However, since the starting price is 900 euros, bidders may be willing to pay a little more, but not much beyond this range, unless there is intense competition in the 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 75 (MBC), indicating that it is in fairly good shape, but not the best possible condition.

2. Auction History:
- The average hammer price for similar coins in the past is 896.41 euros.
- In previous auctions, coins with a similar condition (75) have reached hammer prices that vary, but some examples are:
- 550 euros (2020-07-02)
- 650 euros (2018-07-05)
- 720 euros (2020-10-27)
- 1200 euros (2022-10-19, although with a condition of 70)
- 2100 euros (2023-03-16, with a condition of 85)

3. Starting Price: The starting price is 700 euros, which may influence the final price, as the hammer price is often higher than the starting price.

4. Price Trends: Observing the trends, it seems there is an increase in hammer prices in recent auctions, especially for coins in good condition.

Based on these factors, an estimated maximum purchase price could be in the range of 900 to 1200 euros, considering that the average hammer price is 896.41 euros and there are examples of higher hammer prices for coins in similar conditions.

Therefore, a reasonable maximum purchase price could be 1200 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 quite good shape. This is relevant because coins in better condition tend to fetch higher prices.

2. Price History:
- The average hammer price for this coin in the past is 785.45 euros.
- Previous hammer prices for coins with similar conditions (around 80-85) have varied, but there are examples of auctions reaching up to 1100 euros (in the case of a condition of 75).

3. Starting Price: The starting price is 500 euros, which is a reasonable starting point.

4. Auction Trends: Given that the coin has sold in all previous occasions and considering that the average hammer price is significantly higher than the starting price, this suggests that there is good demand for this coin.

5. Estimation: Based on the average hammer price and price history, a reasonable maximum purchase price could be in the range of 800 to 1000 euros, given that the condition is good and there are precedents for high hammer prices.

Therefore, an estimated maximum purchase price for this coin could be approximately 900 euros. This allows for some margin for competition in the auction and aligns with previous hammer prices.

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

1. Current starting price: 400 euros.
2. Average hammer price in the past: 565 euros.
3. Hammer price history:
- 2020: 120 euros (grade 30)
- 2016: 950 euros (grade unknown)
- 2016: 180 euros (grade unknown)
- 2015: 300 euros (grade unknown)
- 2014: 240 euros (grade unknown)
- 2018: 100 euros (grade 30)
- 2017: 200 euros (grade unknown)
- 2024: 460 euros (grade 70)
- 2024: 1500 euros (grade 95)

4. Price analysis:
- Hammer prices vary significantly, ranging from 100 euros to 1500 euros, depending on the grade and other factors.
- The general trend shows that coins in better condition tend to reach higher prices.
- The last auction with a grade of 70 reached 460 euros, suggesting there is significant interest in medium-quality coins.

5. Maximum price estimation:
- Since there is no information about the condition of the current coin, but considering that the starting price is 400 euros and the average hammer price is 565 euros, a reasonable maximum purchase price could be in the range of 600 to 700 euros, assuming the coin has an acceptable condition.

Therefore, an estimated maximum purchase price for this coin could be 650 euros. This is based on the analysis of previous hammer prices and the market context.

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

2. Current Listing Price and Previous Prices: The current listing price is 800 euros. The average hammer price in previous auctions is 1035.94 euros, suggesting that coins of this reference tend to sell for above their listing price.

3. Historical Trends: Looking at the hammer prices from previous auctions, there are examples of similar coins that have sold for significantly higher prices, especially those with similar or better conditions. For instance, in a recent auction, a coin with a condition of 75 sold for 3900 euros, indicating a strong market for coins of this reference.

4. Price Estimates: The estimated price for this auction is 1700 euros, which also suggests that bidders are willing to pay more than the listing price.

Considering all these factors, an estimated maximum purchase price could be around 1500-1700 euros, as this aligns with previous price trends and the condition of the coin. However, it is important to remember that the final price may vary depending on the competition in the auction and the interest of collectors.

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

1. Current starting price: 900 euros.
2. Average auction price in the past: 1195.45 euros.
3. Auction price history:
- 2018-05-31: 950 euros (condition 90)
- 2018-03-08: 950 euros (condition 80)
- 2016-10-19: 800 euros (condition 90)
- 2020-06-24: 1650 euros (condition unknown)
- 2017-06-28: 950 euros (condition unknown)
- 2021-03-09: 1300 euros (condition 95)
- 2021-02-18: 1300 euros (condition 80)
- 2022-03-30: 1700 euros (condition 90)
- 2022-09-27: 1300 euros (condition 90)
- 2023-02-16: 650 euros (condition 80)

4. Price analysis:
- Auction prices have varied between 650 and 1700 euros, with an average of 1195.45 euros.
- The conditions of the auctioned coins have influenced the prices, where higher conditions (90 and 95) tend to have higher auction prices.

5. Estimation:
- Since there is no information about the condition of the current coin, it is prudent to consider an auction price that is in the mid-range of previous prices, while also taking into account that the starting price is 900 euros.
- A reasonable auction price could be between 1200 and 1500 euros, based on the price history and the average auction price.

Estimated maximum purchase price: 1500 euros.

This price reflects a balance between the auction price history and the uncertainty regarding the condition of the current coin.

To estimate a maximum purchase price for the coin that is going to be auctioned, we can analyze the provided data. Here are some key points to consider:

1. Starting price: 250 euros.
2. Average hammer price: 114.8 euros.
3. Auction history: The coin has been auctioned 31 times, of which it has sold 30 times. This indicates good demand.
4. Previous prices: Previous hammer prices varied, but there are examples of auctions reaching up to 300 euros in higher conservation conditions (such as in the auction on 2022-03-30).

Since there is no information about the conservation of the current coin, it is difficult to make an accurate estimate. However, we can consider the starting price and the history of hammer prices.

- The starting price of 250 euros is significantly higher than the average hammer price of 114.8 euros, suggesting that the seller has high expectations for the coin.
- If we consider the highest recorded hammer price (300 euros), this could be a good indicator of a maximum purchase price, especially if the coin has acceptable conservation.

Taking these factors into account, an estimated maximum purchase price could be between 250 and 300 euros, depending on the conservation and demand at the auction. However, since the starting price is 250 euros, a reasonable maximum price could be approximately 275 euros. This allows for some competition in the auction while also remaining below the starting 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 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. Current Starting Price and Previous Prices: The current starting price is 600 euros. The average hammer price in previous auctions is 364.14 euros, suggesting that the current starting price is quite high compared to the historical average.

3. Price Trends: By observing the hammer prices of coins with similar conditions (95), we can see that they have reached hammer prices of up to 550 euros in recent auctions. However, there are also examples of coins that have sold for over 600 euros, especially if demand is high.

4. Sales History: The coin has been auctioned 41 times, of which 36 have been sold. This indicates a good sales rate, which may be an indicator of interest in the coin.

5. Comparison with Previous Prices: In previous auctions, coins with a condition of 95 have had hammer prices that vary, but some have reached up to 500-550 euros.

Taking all these factors into account, an estimated maximum purchase price could be between 600 and 700 euros, considering that interest in the coin may lead bidders to be willing to pay a bit more than the starting price. However, since the starting price is already 600 euros, a realistic hammer price could be closer to 650 euros, assuming that demand remains steady.

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

1. Current starting price: 1000 euros.
2. Coin condition: 90 (XF), indicating good preservation.
3. Auction history:
- In 2016, the coin was auctioned with a starting price of 600 euros and sold for 1300 euros.
- In 2014, the starting price was 2500 euros, with a final bid of 3000 euros.
- In 2019, the starting price was 120 euros and it sold for 240 euros.

4. Average final bid price: 1535 euros, which is a good indicator of market value.

Given that the coin is in good condition and considering the previous final bid prices, a reasonable maximum purchase price could be in the range of the average final bid price.

Taking all these factors into account, an estimated maximum purchase price could be around 1600 to 1800 euros. This is based on the auction history and the good condition of the coin.

To estimate a maximum purchase price for the coin that will be auctioned, we can analyze the provided data:

1. Current starting price: 500 euros.
2. Average starting price in previous auctions: 780 euros.
3. Average hammer price in previous auctions: 1294 euros.
4. Auction history: The coin has been auctioned 5 times and has sold on all occasions, indicating good demand.
5. Previous hammer prices: The hammer prices have varied, but the highest was 2600 euros in a recent auction with a grade of 95.

Since there is no information about the condition of the current coin, it is difficult to make an accurate estimate. However, considering the average hammer price of 1294 euros and the fact that the coin has a history of successful sales, we can make an estimation.

If we take into account the average hammer price and the fact that the starting price is relatively low (500 euros), we could estimate that the maximum purchase price could be in a range between the average hammer price and the highest recorded price.

Estimation of the maximum purchase price:
We could consider a maximum purchase price of around 1500 to 1800 euros, taking into account the price history and the lack of information about the condition. This would allow for a competitive bid without exceeding the historical hammer prices.