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 (VF-), indicating that it is in acceptable shape, but not in the best 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 90 euros, and the average starting price in previous auctions is 198.85 euros. The average hammer price is 230.09 euros, suggesting that, in general, coins of this reference tend to sell for above their starting price.

3. Auction History: The coin has been auctioned 13 times, of which it has sold 11 times. This indicates good demand. Additionally, the highest recorded hammer price was 550 euros in 2017, although this may not be representative due to a lack of information about the condition of that coin.

4. Price Trends: Observing the hammer prices from previous auctions, we can see considerable variability. For example, in 2020, the coin sold for 95 euros, while in 2018 it sold for 130 euros. This suggests that the price may fluctuate depending on demand at the time of the auction.

5. Data-Based Estimation: Given that the average hammer price is 230.09 euros and considering that the condition of this coin is 70, an estimated maximum purchase price could be positioned between the average hammer price and a bit lower, given its state.

Taking all these factors into account, an estimated maximum purchase price for this coin could be approximately 200-220 euros. This is based on the price history and current condition, suggesting that it could reach a reasonable price at auction.

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+), indicating that it is not in the best shape. This generally negatively affects the auction price.

2. Auction History:
- In 2019, a coin with the same condition (30) was auctioned with a final price of 280 euros, suggesting that there is a market willing to pay high prices for coins of this reference, even in less than optimal conditions.
- In 2020, the starting price was 90 euros, but it did not sell, indicating that interest may have fluctuated.
- In 2017, the final price was 120 euros, which is also relevant, although the condition of that coin is not specified.
- In 2014, the final price was 190 euros, showing that interest in this coin has varied over the years.

3. Starting Price and Average Final Price: The current starting price is 125 euros, and the average final price in previous auctions is 147.25 euros. This suggests that the final price could be in a similar range.

4. Market Trends: Since the coin has sold in all previous auctions and there have been no failed sale attempts, this indicates a consistent interest in the coin.

Based on these factors, an estimated maximum purchase price could be in the range of 150 to 200 euros, considering that the condition is not optimal but there is a history of high prices in previous auctions. A price of 180 euros could be a good benchmark for a competitive offer, given the auction history and 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-). This is an important factor, as coins in better condition tend to reach higher prices.

2. Historical Prices:
- The average hammer price in previous auctions is 450.57 euros, indicating that, in general, this coin has good market interest.
- Previous hammer prices varied, but there are examples of auctions reaching up to 1000 euros (in the case of the March 2024 auction with a condition of 85).

3. Starting Price and Average Starting Price:
- The current starting price is 90 euros, which is relatively low compared to the average starting price of 179.38 euros. This suggests that there may be a buying opportunity at a reasonable price.

4. Sales Trends: The coin has sold every time it has been auctioned, indicating consistent demand.

5. Condition Comparison: A condition of 70 is lower than the conditions of 80 and 85 that have reached higher hammer prices. This suggests that the hammer price for this coin could be lower than the examples of higher condition.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 250 to 350 euros. This is based on the fact that, although the condition is not the best, the interest in the coin and historical prices suggest it could reach a reasonable price at auction.

Therefore, an estimated maximum purchase price could be 300 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+), indicating that it is not in very good shape. This will negatively affect its value compared to coins in better condition.

2. Previous auction prices:
- In 2019, the coin was auctioned with a starting price of 200 euros and sold for 300 euros, with a condition of 75.
- In 2016, the starting price was 100 euros and it sold for 130 euros, but the condition is not specified.
- In 2014, the starting price was 90 euros and it sold for 100 euros, without specifying the condition.

3. Average hammer price: The average hammer price for this coin is 176.67 euros, which provides a good reference point.

4. Current starting price: The starting price is 90 euros, which is relatively low compared to previous hammer prices.

5. Market trends: Since the coin has sold in all previous instances and there have been no failed sale attempts, this suggests that there is consistent interest in the coin.

Taking all these factors into account, and given that the current condition is quite low, an estimated maximum purchase price could be in the range of 100 to 130 euros. This is based on the fact that, although the condition is not high, the interest in the coin and previous hammer prices suggest that it could reach a reasonable price at auction.

Therefore, an estimated maximum purchase price could be 120 euros.

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

1. Coin Condition: The coin has a condition rating of 70 (MBC-), which indicates that it is in an acceptable state, but not excellent. This generally reduces its value compared to coins in better condition.

2. Auction History: The coin has been auctioned 57 times, of which it has sold 50 times. This indicates good demand. The average hammer price for similar coins in the past is 1164.61 euros, providing a benchmark.

3. Previous Prices: Previous hammer prices for coins with similar conditions (around 70) have varied, but there are examples of hammer prices exceeding 1000 euros. However, there are also lower prices, suggesting that the price may fluctuate depending on demand at the time of the auction.

4. Starting Price: The starting price is 120 euros, which is relatively low compared to the average hammer price. This may indicate that there is an opportunity to purchase at a reasonable price.

5. Market Trends: Given that the average starting price for similar coins is 654.7 euros, and the average hammer price is 1164.61 euros, we can infer that there is a considerable margin between the starting price and the hammer price.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 800 to 1000 euros. This is based on the hammer price history and the condition of the coin. However, it is important to pay attention to the demand in the specific auction, as this can influence the final price.