To estimate a maximum purchase price for the coin to be auctioned, we can analyze the provided data, especially previous auction prices and the coin's condition.

1. Starting price: 1000 euros.
2. Auction history: The coin has been auctioned 58 times, of which it has sold 54 times. This indicates good demand.
3. Previous hammer prices: The hammer prices have varied considerably, with some reaching very high figures, such as 2500 euros in 2018, and others in the range of 180 to 650 euros in more recent auctions.
4. Condition: There is no information about the condition of this particular coin, which may complicate the estimation. However, it can be observed that coins with higher conditions (95 and 90) have reached significantly higher hammer prices.

Given that the starting price is 1000 euros, and considering that in the past hammer prices have reached up to 2500 euros, but there are also recent auctions where hammer prices have been lower, a maximum estimated purchase price could be set in a more conservative range.

Maximum purchase price estimation: Based on the history of hammer prices and the lack of information about the condition, a reasonable maximum purchase price could be between 1200 and 1500 euros. This allows for a margin for competition in the auction, but also considers the variability in previous hammer prices.

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

1. Condition of the coin: The coin to be auctioned has a condition rating of 90 (EBC), indicating that it is in very good condition. This generally translates to a higher price compared to coins with lower condition ratings.

2. Price history: By looking at previous auction prices for coins with a similar condition (90), we find that they have sold for prices that varied considerably in the past. For example:
- In 2019, a coin with a condition of 90 sold for 2000 euros.
- In 2020, another coin with a condition of 90 sold for 500 euros.
- In 2022, a coin with a condition of 85 sold for 1100 euros.

3. Starting price and average hammer price: The current starting price is 700 euros, and the average hammer price in previous auctions is 632.55 euros. This suggests that the starting price is reasonable and could attract bidders.

4. Market trends: Given that the coin has a history of successful sales and has reached high prices in the past, it is reasonable to assume that interest in this coin could be high, especially if the condition is good.

Based on these factors, an estimated maximum purchase price could be in the range of 1000 to 1500 euros, considering that the highest hammer price in the past was 2000 euros, but also taking into account that the average hammer price is significantly lower.

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:

1. Current starting price: 900 euros.
2. Average starting price in previous auctions: 928.57 euros.
3. Average hammer price in previous auctions: 1463.5 euros.
4. Auction history: The coin has been auctioned 10 times and has sold in all of them, indicating good demand.

### Analysis of previous prices:
- In the auctions of 2020 and 2018, the hammer prices were 1500 and 1460 euros, respectively, with starting prices of 800 and 1200 euros.
- In other auctions, hammer prices have ranged between 850 and 1900 euros, depending on the condition and starting price.

### Considerations:
- The condition of the current coin is not specified, which may influence its value. However, previous hammer prices for coins of similar condition (95) have been consistently high.
- Given that the starting price is 900 euros and the average hammer price is 1463.5 euros, there is considerable room for a higher hammer price.

### Estimation of the maximum purchase price:
Based on the history of hammer prices and the average hammer price, a reasonable maximum purchase price could be a percentage of the average hammer price. Considering that the starting price is 900 euros, a maximum purchase price could be between 80% and 90% of the average hammer price.

Calculating:
- 80% of 1463.5 euros = 1170.8 euros
- 90% of 1463.5 euros = 1316.15 euros

### Conclusion:
An estimated maximum purchase price for the coin could be between 1170 and 1316 euros, depending on the demand at the auction and the final 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 85 (ebc-), indicating that it is in fairly good shape, but not the best possible condition. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Current Starting Price and Previous Prices: The current starting price is 600 euros, and the average hammer price in previous auctions is 1437 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: The auction history shows that on several occasions the coin has reached hammer prices that exceed the starting price. For example, in the 2020 auction, the hammer price was 1100 euros with a starting price of 450 euros. This indicates that there is considerable interest in this coin.

4. Price Trends: The average hammer price of 1437 euros is a good indicator of what buyers are willing to pay. However, given that the current condition is 85, it is reasonable to adjust this price downward.

5. Comparison with Previous Prices: The coin has had hammer prices that vary, but overall, the hammer prices have been in a range that suggests the price of 1437 euros is achievable, although it may not be reached in this specific auction due to the condition.

Taking all these factors into account, an estimated maximum purchase price could be around 1200-1300 euros. This reflects interest in the coin, but also considers its condition and the fact that the hammer price may vary depending on competition in the auction.

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 of 75 (MBC), which indicates that it is in fairly good shape, but not the best possible condition. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- It has been auctioned 4 times in the past, of which 3 have sold. This indicates an interest in the coin.
- Previous hammer prices are relevant. For example, in a 2022 auction, a coin with a condition of 70 sold for 1000 euros, and another with a condition of 80 sold for 1600 euros. This suggests that the price can vary significantly depending on the condition.

3. Starting Price and Average Hammer Price:
- The current starting price is 1000 euros, and the average hammer price in the past has been 1433.33 euros. This suggests that the hammer price could be in a similar or higher range than the starting price.

4. Price Trends: Given that the average hammer price has been above the starting price, and considering that the condition of the coin is relatively good (75), it is reasonable to assume that the hammer price could be in a high range.

Based on these factors, an estimated maximum purchase price could be between 1200 and 1600 euros, considering that the condition is slightly lower than that of coins that have sold for higher prices. A price of 1400 euros could be a good benchmark for a competitive offer, given the price history and current condition.

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: 400 euros.
2. Average auction price in the past: 176.44 euros.
3. Previous auction prices:
- The coin has had auctions that varied from 24 euros to 650 euros, depending on the condition.
- The conditions of the auctioned coins in the past have varied, with some reaching conditions of 95, indicating high quality.

4. Condition of the current coin: There is no information about the condition of this coin, which complicates the estimation. However, we can observe that coins with higher conditions have reached significantly higher auction prices.

5. Price trends:
- The general trend shows that coins with higher conditions tend to achieve higher auction prices. For example, a coin with a condition of 95 was auctioned for 650 euros.
- Most auctions have been below 200 euros, suggesting that the average auction price is a good indicator for setting a limit.

Given that the starting price is 400 euros, which is considerably higher than the previous average auction price, and without information about the condition, an estimated maximum purchase price could be set in a more conservative range.

Estimated maximum purchase price: Based on the average auction price and the variability of previous prices, a reasonable maximum purchase price could be between 200 and 250 euros, assuming that the condition is not exceptional. If it is considered that the coin might have a high condition, the price could approach 300 euros, but without clear information, it is better to be conservative.

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

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

1. Current starting price: 900 euros.
2. Average hammer price in previous auctions: 1437 euros.
3. Auction history: The coin has been auctioned 10 times and has sold in all of them, indicating good demand.
4. Previous hammer prices: The hammer prices have varied, but there are examples of sales exceeding 1000 euros, even reaching 1500 euros on some occasions.

Since there is no information about the current condition of the coin, it is difficult to make an accurate estimate. However, we can consider the following points:

- The average hammer price (1437 euros) suggests that buyers are willing to pay a price higher than the starting price.
- The trend of hammer prices in the past shows that, in general, prices have been quite high, especially in recent auctions.

Based on this information, an estimated maximum purchase price could be positioned in a range between the average hammer price and a bit more, considering that the starting price is 900 euros.

Therefore, an estimated maximum purchase price could be approximately 1600 euros. This is based on the trend of previous hammer prices and the consistent demand for 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 50 (fine), which indicates that it is not in the best condition. This will negatively affect its value compared to coins in better condition.

2. Auction History:
- The coin has been auctioned 6 times, of which it has sold 5 times. This indicates a consistent interest in the coin.
- Previous hammer prices are quite high, especially the one from 2013, where it sold for 22,509.25 euros with a condition of 90. This suggests that, in optimal conditions, the coin can reach very high prices.
- However, hammer prices for lower conditions (such as 75 and 80) are significantly lower, indicating that condition is a crucial factor in pricing.

3. Starting Price and Average Price:
- The current starting price is 1,000 euros, which is relatively low compared to the average hammer price of 6,558.04 euros. This suggests that there is potential for the hammer price to be higher, but it also depends on the condition.

4. Comparison with Previous Prices:
- In previous auctions, starting prices have varied, but the lowest hammer price was 1,200 euros (in 2014), indicating that even in non-optimal conditions, the coin has a minimum value.

Given all this, and considering that the current condition is 50, an estimated maximum purchase price could be set in a more conservative range.

Estimated Maximum Purchase Price: It could be reasonable to estimate a maximum purchase price around 2,500 to 3,000 euros, taking into account the condition and price history. This would allow for a profit margin if the coin is resold in the future, especially if its condition improves or if the market becomes more favorable.

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

1. Current starting price: 1200 euros.
2. Auction history: The coin has been auctioned 34 times, of which it has sold 25 times. This indicates a sell-through rate of 73.5%, which is quite positive.
3. Previous prices: Previous hammer prices varied significantly, but there are several examples of auctions that exceeded 1000 euros, especially in high grades (100 and 95).
4. Average hammer price: The average hammer price is 763.74 euros, suggesting that the current starting price of 1200 euros is significantly higher than the historical average.
5. Condition: There is no specific information about the condition of this coin, which may make buyers more cautious. However, the history shows that coins in good condition have reached high hammer prices.

Given that the starting price is 1200 euros and considering the auction price history, an estimated maximum purchase price could be in the range of 1500 to 1800 euros, depending on the demand at the auction and collectors' perception of the coin's condition.

Therefore, an estimated maximum purchase price could be 1600 euros. This is based on the fact that it is a price above the starting price, but still within a reasonable range considering previous hammer prices.

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 90 (EF), indicating 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 is 147.24 euros.
- The coin has been auctioned 21 times, of which it has sold 17 times, indicating good demand.
- Previous hammer prices for coins with similar conditions (80-85) have varied, but some have reached up to 75 euros.

3. Starting Price: The current starting price is 200 euros, which is significantly higher than the average hammer price for similar coins. This may indicate that the seller has high expectations, but it could also limit buyer interest.

4. Price Trends: Looking at the hammer prices from previous auctions, it seems that coins in similar conditions have reached hammer prices ranging from 20 to 75 euros, with some exceptional cases.

Given all this, an estimated maximum purchase price could be set in a range that reflects both the condition of the coin and the price history. Considering that the condition is good and the average hammer price is 147.24 euros, a reasonable maximum purchase price could be:

Estimated maximum purchase price: 150-180 euros.

This range takes into account the good condition and the price history, but also considers that the starting price is higher than what has been seen in the past.

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

1. Current starting price: 900 euros.
2. Current grade: 80 (MS+), indicating good preservation.
3. Auction history:
- In 2020, the coin was auctioned with a grade of 75, with a starting price of 600 euros and a hammer price of 850 euros.
- In 2019, the coin was auctioned with a grade of 85, with a starting price of 1100 euros and a hammer price of 1700 euros.

4. Average prices:
- Average starting price: 866.67 euros.
- Average hammer price: 1516.67 euros.

Given that the current grade of the coin (80) is better than that of the 2020 auction (75) and slightly lower than that of 2019 (85), we can infer that the hammer price could be in an intermediate range between the previous hammer prices.

### Maximum purchase price estimation:
- Considering the highest hammer price (1700 euros) and the lowest hammer price (850 euros), we can calculate a range:
- A reasonable hammer price for a grade of 80 could be between 1000 and 1300 euros, as it is better than that of 2020 but not as high as that of 2019.

### Conclusion:
An estimated maximum purchase price for this coin could be around 1200 euros. This is based on the grade, price history, and market context.

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

1. Condition: The coin to be auctioned has a condition of 95 (EBC+), indicating that it is in very good shape. This generally increases its value compared to coins with lower conditions.

2. Previous auction prices:
- In previous auctions, hammer prices have varied. The last auction with a condition of 75 had a hammer price of 1300 euros, while another with the same condition also had a hammer price of 1300 euros. The condition of 70 had a hammer price of 650 euros.
- This suggests that the hammer price can significantly increase with better condition.

3. Average hammer price: The average hammer price for coins of this reference is 1316.67 euros, providing a good benchmark.

4. Starting price: The starting price is 1100 euros, indicating that the seller has reasonable expectations for the price.

Given that the condition of the coin in the auction is significantly better than the previous ones (95 compared to 70 and 75), and considering the average hammer price, an estimated maximum purchase price could be positioned above the average hammer price.

Estimated maximum purchase price: It could be reasonable to estimate a maximum purchase price around 1500 euros, given the condition and the history of hammer prices. This allows for a margin for competition in the auction and the value that collectors may be willing to pay for a coin in such good condition.

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

1. Current Condition: The coin has a condition rating of 85 (ebc-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Auction History:
- The average hammer price in previous auctions is 1322.61 euros.
- The last auction with a hammer price was 2600 euros for a coin with a condition rating of 95, indicating that the price can vary significantly based on condition.
- In previous auctions, coins with a similar condition (85) have reached hammer prices ranging from 806 to 1300 euros.

3. Starting Price and Estimated Price:
- The current starting price is 1500 euros, and the estimated price is 2000 euros. This suggests that the seller has expectations of a higher price, but it may also indicate that the market is willing to pay more.

4. Market Trends: Since the coin has sold in 23 of the last 24 auctions, there is consistent demand. This may influence the final price.

Based on these factors, an estimated maximum purchase price could be in the range of 1800 to 2200 euros, considering that the highest recent hammer price was 2600 euros for a coin in better condition. However, given that the condition of this coin is lower, a more conservative price of 1800 euros may be more realistic, while 2200 euros could be the upper limit if there is active competition in the auction.