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 70 (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 coin has been auctioned 29 times, of which it has sold 22 times. This indicates good demand.
- The average hammer price in previous auctions is 27.82 euros, providing a reference point.
- In recent auctions, the hammer price has varied, but it has been observed that coins in similar conditions (around 80) have reached hammer prices of up to 70 euros.

3. Starting Price and Estimates:
- The current starting price is 30 euros, which is slightly higher than the average starting price of 21.04 euros. This may indicate that the seller has higher expectations due to demand or condition.
- The estimated price for this auction is 60 euros, suggesting that the seller anticipates good interest.

4. Price Trends:
- In previous auctions, hammer prices have fluctuated, but generally, coins with conditions of 80 or higher have reached higher prices. Given that this coin has a condition of 70, it is reasonable to expect that the hammer price will not significantly exceed the average.

Based on these factors, an estimated maximum purchase price could be between 40 and 50 euros. This is based on the price history, current condition, and price trends in previous auctions. However, since the starting price is 30 euros, it is possible that some bidders may be willing to pay a little more, but I would not expect the hammer price to exceed 50 euros on this occasion.

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

1. Current Condition: The coin has a condition rating of 70 (VF-), indicating an acceptable but not excellent state. This may influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- It has been auctioned 9 times in the past, of which it has sold 7 times. This indicates good demand.
- The average hammer price in previous auctions is 121.43 euros, which can serve as a reference for the estimated price.

3. Previous Prices:
- In past auctions, hammer prices have varied significantly. For example, in 2020 it sold for 270 euros, while at other times it has been much lower (such as 25 euros in 2021).
- The last auction with a known hammer price was 95 euros for a coin with a condition of 80.

4. Starting Price and Average Starting Price:
- The current starting price is 70 euros, and the average starting price in the past has been 87.14 euros.

Based on this data, an estimated maximum purchase price could be set in a range between the average hammer price (121.43 euros) and the highest recorded price (270 euros), adjusted for the current condition of the coin.

Given that the coin's condition is 70, which is lower than some coins that have sold for higher prices, a reasonable maximum price could be:

Estimated maximum purchase price: 120-150 euros.

This range takes into account the condition and price history, offering a margin that could be attractive to a buyer.

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 75 (MBC), indicating that it is in fairly good shape, although not the best possible condition.

2. Auction History: The coin has been auctioned 37 times, of which it has sold 30 times. This indicates good demand and consistent interest in the coin.

3. Previous Prices: By looking at previous hammer prices for coins with similar conditions (75 and 80), we can see that hammer prices have varied. For example:
- In previous auctions, coins with a condition of 80 have reached hammer prices of up to 100 euros.
- The last auction with a condition of 75 had a hammer price of 90 euros.

4. Starting Price and Average Hammer Price: The current starting price is 50 euros, and the average hammer price in the past has been 44.43 euros. However, given that the condition is relatively good, it is reasonable to expect that the hammer price will be above average.

5. Price Trends: In recent auctions, hammer prices have shown an upward trend, especially for coins in good condition.

Taking all these factors into account, an estimated maximum purchase price for this coin could be around 90-100 euros, as this price reflects its condition and the interest demonstrated in previous auctions.

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 75 (MBC), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins in lower condition.

2. Auction History:
- The average hammer price for this coin in the past is 148.03 euros.
- In previous auctions, hammer prices have varied, but some have reached up to 340 euros under similar conditions.
- The last auction of this coin with a condition of 75 had a hammer price of 200 euros.

3. Starting Price: The current starting price is 150 euros, which is a good indicator of the seller's expectations.

4. Price Trends: Looking at the hammer prices in previous auctions, it seems there is a price range that can go from 65 euros to 340 euros, depending on the condition and demand at the time of the auction.

Given all this, an estimated maximum purchase price for this coin, considering its condition and price history, could be around 200-250 euros. This is based on the fact that the highest hammer price under similar conditions has been 340 euros, but also considering that the average hammer price is 148.03 euros.

Therefore, a reasonable maximum bid price could be 250 euros.