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

1. Current starting price: 60 euros.
2. Coin condition: 70 (MBC-), indicating good condition, although not the best.
3. Auction history:
- In 2019, the coin was auctioned with a starting price of 60 euros and sold for 60 euros, indicating that the starting price was appropriate for its condition.
- In 2014, it was auctioned with starting prices of 20 and 15 euros, and sold for 25 euros in both cases, suggesting that interest in the coin has increased over time.

4. Average hammer price: 36.67 euros, which is lower than the current starting price, but may reflect an increase in demand or in the coin's condition.

5. Auction trends: The coin has been sold every time it has been auctioned, indicating consistent interest.

Given that the coin is in good condition and has maintained its value in previous auctions, an estimated maximum purchase price could be slightly higher than the current starting price, but not too much, to avoid overpaying.

Estimated maximum purchase price: 80 euros.

This price reflects a moderate increase over the starting price, considering the good condition and auction history.

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 quite good shape. This is important because coins in better condition tend to fetch higher prices.

2. Auction History:
- The average hammer price for similar coins has been 54.4 euros.
- In previous auctions, hammer prices for coins with a similar condition (75) have varied, but there are examples of sales reaching up to 90 euros (as seen in the auction on March 1, 2023).

3. Starting Price and Average Starting Price: The starting price is 40 euros, and the average starting price is 36 euros. This suggests that the starting price is reasonable and could attract bidders.

4. Sales Trends: The coin has been sold in 11 out of the last 12 auctions, indicating good demand.

5. Previous Estimates: In past auctions, the estimated price has been as high as 90 euros, suggesting there is potential for a higher hammer price.

Considering all these factors, an estimated maximum purchase price could be around 80-90 euros, given that the condition is good and there is a history of hammer prices supporting this figure. However, to be conservative and considering the starting price, a safer maximum purchase price could be approximately 75-80 euros.

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

1. Coin Condition: The coin has a condition rating of 80 (MBC+), indicating that it is in quite good shape.

2. Auction History:
- The average hammer price for coins with a similar condition (80) has been approximately 45 euros in previous auctions.
- The last auction of a coin with a condition of 80 had a hammer price of 65 euros.

3. Average Starting and Hammer Prices:
- The average starting price is 20.75 euros, and the average hammer price is 38.47 euros. This suggests that coins tend to sell for a price higher than the starting price.

4. Price Trends:
- In previous auctions, hammer prices for coins with a condition of 80 have varied, but the range has been from 30 to 100 euros, depending on demand and other factors.

5. Current Starting Price: The starting price is 5 euros, which is quite low compared to previous hammer prices.

Based on this data, an estimated maximum purchase price for the coin could be in the range of 60 to 80 euros, considering that the condition is good and that the hammer price history for similar coins supports this estimate.

Therefore, a reasonable maximum purchase price could be 70 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 75 (MBC), which is a fairly good state. This suggests that its value could be in the mid-high range of previous auctions.

2. Previous Prices: Looking at previous auction prices for coins with a similar condition (75), we see that they have ranged between 9 and 25 euros. The average hammer price for coins with a condition of 75 has been approximately 12 to 20 euros.

3. Average Hammer Price: The average hammer price for this particular coin has been 19.25 euros, indicating that in the past it has reached prices close to this value.

4. Recent Trends: In the most recent auctions, hammer prices have shown a range of 12 to 30 euros for similar conditions, suggesting that there is growing interest in this coin.

5. Starting Price: The starting price is 9 euros, which is relatively low compared to previous hammer prices.

Taking all these factors into account, an estimated maximum purchase price for this coin could be around 25 euros. This is based on recent interest and previous hammer prices for coins of similar condition.

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 fairly good shape, but not among the best qualities (FDC).

2. Auction History:
- The average hammer price for similar coins has been 68.55 euros.
- In the past, coins with similar conditions (around 70-80) have been auctioned and reached varying hammer prices, but some examples are:
- A coin with a condition of 80 was sold for 60 euros.
- Another with a condition of 80 was sold for 90 euros.
- A coin with a condition of 95 was sold for 400 euros, but that is an exceptional case.

3. Starting Price and Estimates:
- The current starting price is 18 euros, which is quite low compared to the average hammer price.
- The average starting price for similar coins is 41.7 euros, suggesting that the starting price might be conservative.

4. Recent Trends:
- In the most recent auctions, hammer prices have ranged from 40 to 90 euros for similar conditions.

Based on these factors, an estimated maximum purchase price for this coin could be between 70 and 90 euros, considering that the condition is good and that the auction history shows that coins in similar conditions have reached those prices.

Therefore, a reasonable maximum purchase price could be 85 euros.

To estimate a maximum purchase price for the coin in question, we can 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 the best possible condition.

2. Historical Prices: By looking at previous auction prices for coins with a similar condition (75), we can see that they have reached auction prices that vary, but generally fall within a range of 51 to 220 euros.

3. Average Auction Price: The average auction price for this coin is 122.95 euros, which can serve as a good indicator of market value.

4. Current Starting Price: The starting price is 40 euros, which is relatively low compared to previous auction prices.

5. Auction Trends: The coin has been auctioned 26 times, of which 21 have been sold. This indicates a consistent interest in the coin, which may influence its price.

Given all this, an estimated maximum purchase price could be in the range of 150 to 200 euros, considering that the condition is good and that previous auction prices have reached higher figures. However, since the starting price is 40 euros, it is likely that the final auction price will not significantly exceed the average auction price of 122.95 euros.

Therefore, a reasonable maximum purchase price could be 180 euros.

To estimate a maximum purchase price for the coin with a grade of 80 (MBC+), we can analyze historical data and price trends.

1. Current coin data:
- Starting price: €12
- Grade: 80 (MBC+)

2. Relevant historical data:
- The average hammer price for coins with a similar grade (80) has varied, but it can be observed that in several previous auctions, the hammer prices have ranged from €15 to €30.
- For example, in previous auctions with a grade of 80, the hammer prices have been:
- €15 (2018 auction)
- €20 (2022 auction)
- €25 (2022 auction)
- €30 (2022 auction)

3. Hammer price analysis:
- The average hammer price for coins with a grade of 80 seems to be around €20-25.
- The trend shows that, although there are variations, the hammer price tends to be higher than the starting price.

4. Estimation of the maximum purchase price:
- Given that the average hammer price for coins with a grade of 80 is in the range of €20-30, and considering that the starting price is €12, a reasonable maximum purchase price could be slightly higher than the average hammer price.

Therefore, an estimated maximum purchase price for this coin could be €25. This is based on the trend of previous hammer prices and the grade of the coin.

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 (MS+), which indicates that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Auction History:
- The average hammer price in previous auctions is 32.2 euros.
- The coin has been auctioned 31 times, of which it has sold 15 times. This suggests that there is moderate interest in the coin.
- Previous hammer prices for coins with similar conditions (80) have varied, but there are examples of auctions reaching up to 80 euros.

3. Starting Price and Average Starting Price:
- The current starting price is 12 euros, which is quite low compared to the average starting price of 35.53 euros. This could indicate a good buying opportunity.

4. Recent Trends: In the most recent auctions, hammer prices have been in the range of 20 to 40 euros for similar conditions.

Based on these factors, an estimated maximum purchase price could be in the range of 50 to 70 euros. This is based on historical interest, current condition, and average hammer price. However, since the starting price is low, it may be possible to acquire it for a price closer to the lower end of this range.

Therefore, a reasonable estimated maximum purchase price could be 60 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 70 (VF-). This indicates that it is in an acceptable state, but not of high quality.

2. Auction History:
- The average hammer price for coins of similar condition (around 70) has been approximately 15 to 20 euros in recent auctions.
- In the past, coins with a condition of 70 have reached hammer prices of up to 45 euros (as seen in the auction on 2020-10-21).

3. Starting Price and Average Starting Price:
- The current starting price is 12 euros, which is relatively low compared to the average hammer price of 32.94 euros.
- The average starting price of 17.98 euros also suggests that there is potential for an increase in the hammer price.

4. Recent Trends:
- In the most recent auctions, the hammer price has ranged between 15 and 30 euros for coins of similar condition.

Based on these factors, an estimated maximum purchase price for this coin could be between 25 and 35 euros. This is based on the historical hammer prices for coins of similar condition and the potential for an increase in the hammer price in the current auction.

Therefore, a reasonable maximum purchase price could be 30 euros.