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. Auction History:
- It has been auctioned 6 times in the past, of which 5 have sold. This indicates a consistent interest in the coin.
- The average starting price in previous auctions is 365.25 euros, and the average hammer price is 1137.57 euros. This suggests that, although the current starting price is 60 euros, the actual value of the coin may be significantly higher.

3. Previous Prices:
- Previous hammer prices varied considerably, with a maximum price of 3684.58 euros for a coin in condition 107.
- The last auction in 2017 reached a hammer price of 1200 euros, although the condition is not specified.

4. Market Trends: Given that the current starting price is 60 euros, which is significantly lower than the average starting and hammer prices, this could indicate a buying opportunity.

Based on these factors, an estimated maximum purchase price could be in the range of 300 to 600 euros, considering that the coin's condition is 70 and that interest in it has been consistent in the past. This allows for a margin for potential appreciation in value in future auctions.

Therefore, a reasonable maximum purchase price could be 500 euros.

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

1. Starting Price: 30 euros. This is the initial price set for the auction.
2. Condition: The coin has a condition rating of 70 (VF-), indicating that it is in fairly good shape, although not the best possible condition. This may influence collectors' interest.
3. Auction History: The coin has been auctioned once in the past but did not sell, which may indicate that interest in this specific coin is limited. However, the fact that it has been auctioned suggests that there is some perceived value.
4. Average Hammer Price: There is no data on previous sales, making it difficult to establish an average hammer price.

Given that the coin has a starting price of 30 euros and considering its condition, an estimated maximum purchase price could be slightly higher than the starting price, but not too much, since it has not sold in the past.

Therefore, an estimated maximum purchase price could range between 30 and 50 euros, depending on collectors' interest at the time of the auction. A price of 40 euros could be a good benchmark, as it allows for some competition without exceeding the perceived value 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 (VF), indicating that it is in acceptable shape, but not among the best qualities. This generally affects the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- The average starting price for similar coins is 431.78 euros, and the average final price is 794.17 euros.
- In the past, this coin has had final prices that varied significantly, ranging from 198.87 euros to 2898.01 euros, depending on the condition and other factors.

3. Price Trends:
- The last auction for this coin in 2023 had a final price of 700 euros with a condition rating of 80, suggesting that interest in this coin remains strong.
- The highest recorded auction was for 2898.01 euros, but that was for a coin in better condition (condition rating of 90).

4. Current Starting Price: The starting price is 100 euros, which may attract more bidders, but the final hammer price will depend on the competition in the auction.

Taking all these factors into account, an estimated maximum purchase price for this coin, considering its condition and price history, could be in the range of 600 to 800 euros. This is based on the average final price and recent interest in similar coins.

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

1. Current Condition: The coin has a condition of 80 (MBC+), which indicates that it is in relatively good shape, but not of the highest quality (FDC).

2. Auction History:
- The average hammer price for similar coins is 2204.75 euros.
- The average starting price is 1387.98 euros.
- In the past, coins with a similar condition (80) have sold for varying prices, with some examples being:
- 1500 euros in 2012.
- 1500 euros in 2012 (also).
- 960 euros in 2014.
- 1200 euros in 2017.

3. Price Trends:
- Hammer prices have shown a trend of increasing over time, especially for coins in good condition.
- The last auction in 2023 had a hammer price of 1550 euros for a coin with a condition of 85.

4. Current Starting Price: The starting price is 250 euros, which is relatively low compared to previous hammer prices.

Based on these factors, an estimated maximum purchase price could be in the range of 1500 to 2000 euros, considering that the condition is good but not excellent, and that the price history shows that similar coins have reached higher prices in the past.

Therefore, an estimated maximum purchase price could be 1800 euros.