To estimate a maximum purchase price for the coin in question, we can analyze the provided data, including auction history and previous hammer prices.

1. Current Condition: The coin has a condition of 70 (VF-). This is an important factor, as coins in better condition tend to fetch higher prices.

2. Price History:
- The average hammer price for similar coins in the past is 147.81 euros.
- Previous hammer prices for coins with similar conditions (70) have varied, with a hammer price of 200 euros in 2018 and 160 euros in 2014.
- In the most recent auction, a coin with a condition of 80 was hammered at 200 euros.

3. Starting Price: The starting price is 60 euros, which is relatively low compared to previous hammer prices.

4. Trends: Given that the coin has sold in all previous occasions and considering that the average hammer price is significantly higher than the starting price, there is a good chance that the hammer price will exceed the starting price.

### Estimated Maximum Purchase Price
Based on the previous analysis, a reasonable maximum purchase price could be in the range of 180 to 220 euros, considering that:
- The condition of the coin is 70, which may limit the price compared to coins in better condition.
- Previous hammer prices for similar conditions have reached up to 200 euros.
- The general trend of hammer prices is upward.

Therefore, an estimated maximum purchase price could be 200 euros.