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 among the best qualities.

2. Auction History:
- The average hammer price for similar coins is 634.71 euros.
- In the past, coins with a similar condition (75) have sold for prices that varied significantly, ranging from 60 euros to 2900 euros, depending on demand and other factors.

3. Starting Price: The starting price is 120 euros, which may be a good indicator of the seller's expectations.

4. Price Trends:
- In previous auctions, coins with a condition of 75 have had hammer prices ranging from 60 to 220 euros on several occasions.
- The highest auction price for a coin with a condition of 75 was 2900 euros, but this appears to be an exceptional case.

5. Analysis of Previous Sales:
- Out of the 17 times it has been auctioned, 14 have been sold, indicating a good sales rate.
- The average starting price of 362.01 euros suggests that sellers expect to achieve higher prices than the current starting price.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 200 to 300 euros, considering that the condition is good but not exceptional, and that the price history shows variability. A price of 250 euros could be a reasonable target, as it falls in the middle of this range and is consistent with the trends observed in previous auctions.

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

1. Coin Condition: The coin has a condition rating of 70 (MS-), indicating that it is in acceptable condition, but not among the highest quality.

2. Auction History:
- The average hammer price for similar coins has been 123.74 euros.
- In previous auctions, coins with a similar condition (70) have had hammer prices that varied, with some examples being:
- 120 euros (2020-10-20)
- 110 euros (2020-09-17)
- 130 euros (2021-04-20)
- 140 euros (2021-03-18)
- The current starting price is 60 euros, which is relatively low compared to previous hammer prices.

3. Sales Trends: The coin has been auctioned 91 times, of which 82 have resulted in sales. This indicates good demand and sustained interest in the coin.

4. Average Starting Price: The average starting price of 91.12 euros suggests that the current starting price of 60 euros is attractive and could draw in more bidders.

Based on these factors, an estimated maximum purchase price could be between 120 and 150 euros, considering that the condition is 70 and that interest in the coin appears to be strong. A hammer price of around 130 euros could be a reasonable target, given the sales history and the condition of the coin.