To estimate a maximum purchase price for the coin that will be auctioned, we can consider several factors based on the provided data:

1. Coin Condition: The coin has a condition rating of 70 (MBC-), indicating that it is in relatively good shape. This can positively influence its price.

2. Starting Price: The starting price is 50 euros. This is the baseline for the auction.

3. Auction History:
- The average hammer price for similar coins is 91.88 euros.
- In the past, this coin has had hammer prices that varied, with some reaching up to 235 euros in previous auctions.

4. Price Trends:
- The coin has been auctioned 11 times, of which 10 have sold. This indicates good demand.
- The average starting price for similar coins is 58.33 euros, suggesting that the current starting price is competitive.

5. Previous Hammer Prices:
- In recent auctions, hammer prices have been 50, 75, 90, and 140 euros, showing a considerable range in which the price can fluctuate.

Taking all these factors into account, an estimated maximum purchase price could be set in a range between 90 and 120 euros, considering that the average hammer price is 91.88 euros and that the coin's condition is good.

Therefore, a reasonable maximum purchase price could be 100 euros. This allows for some margin for competition in the auction and reflects the historical value of the coin.

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

1. Current Condition: The coin has a condition of 70 (MBC-). This indicates that it is in relatively good shape, but not of the best quality (FDC).

2. Previous Prices: Looking at previous auction prices for coins with similar conditions (70 and 75), we can see that:
- In past auctions, coins with a condition of 70 have reached hammer prices of up to 140 euros.
- Coins with a condition of 75 have reached hammer prices of up to 110 euros.

3. Average Hammer Price: The average hammer price for this coin is 184.55 euros, suggesting that, in general, coins of this reference tend to sell for higher prices.

4. Starting Price and Average Starting Price: The current starting price is 30 euros, and the average starting price is 59.78 euros. This indicates that the starting price is relatively low compared to previous hammer prices.

5. Auction Trends: Since the coin has been auctioned 23 times and all have been sold, this suggests a consistent demand.

Based on these factors, an estimated maximum purchase price could be in the range of 140 to 200 euros, considering that the condition is 70 and there are precedents for higher hammer prices. However, given that the starting price is 30 euros, it might be reasonable to set a maximum purchase price around 150-180 euros, depending on the competition in the auction and the interest of other bidders.

Therefore, an estimated maximum purchase price could be 180 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), indicating 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 in previous auctions has been 70 euros.
- The coin has been auctioned 6 times, of which it has sold 5 times, indicating good demand.
- Previous hammer prices have varied, but the highest was 75 euros on several occasions.

3. Starting Price and Average Starting Price:
- The current starting price is 30 euros, which is relatively low compared to the average starting price of 50 euros and the average hammer price of 70 euros.

4. Price Trends:
- In previous auctions, hammer prices have ranged from 60 to 75 euros, with an estimated price of up to 100 euros in a previous auction.

Given that the coin's condition is 75 and considering the price history, an estimated maximum purchase price could be in the range of 70 to 90 euros. This is based on the average hammer price and the fact that the condition is good.

Therefore, a reasonable estimated maximum purchase price for this coin could be 80 euros. This allows for a margin for competition in the auction, given that the starting price is low and there is interest in 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), which indicates that it is in acceptable shape, but not among the best qualities. This can influence the price, as coins in better condition tend to fetch higher prices.

2. Auction History:
- The average hammer price for similar coins is 181.63 euros.
- In the past, coins of the same reference with similar conditions have sold for prices that varied significantly, from 35 euros to 440 euros, depending on the condition and demand at that time.

3. Starting and Hammer Price:
- The current starting price is 60 euros, which is relatively low compared to the average hammer price.
- The last auction of a similar coin with a condition of 80 had a hammer price of 140 euros, suggesting there is potential for price increase.

4. Sales Trends: Of the 14 times it has been auctioned, 13 have sold, indicating good demand for this coin.

Based on these factors, an estimated maximum purchase price could be in the range of 150 to 200 euros, considering that the condition is slightly lower than that of coins that have reached higher prices in the past. This also takes into account the average hammer price and sales trend.

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

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

1. Coin Condition: The coin has a condition rating of 75 (MBC), indicating that it is in fairly good shape, but not of the highest quality (FDC).

2. Auction History:
- The average hammer price for similar coins has been 174.37 euros.
- In previous auctions, we have seen hammer prices that varied significantly, ranging from 40 euros to 750 euros, depending on the condition and demand at that time.

3. Starting Price and Previous Prices:
- The current starting price is 60 euros, which is lower than the average starting price of 72.78 euros.
- In previous auctions, the highest hammer price for coins with a similar condition has been 360 euros (in 2018).

4. Recent Trends: In the most recent auctions, hammer prices have shown an increase, which could indicate a rising trend in interest for this coin.

Taking all these factors into account, an estimated maximum purchase price could be in the range of 150 to 200 euros. This is based on the historical hammer prices for coins of similar condition and the growing interest in recent auctions.

Therefore, a reasonable maximum purchase price could be 200 euros.

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

1. Condition: The coin has a condition of 70 (MBC-), which indicates that it is in an acceptable state, but not of the highest quality. This influences the price, as coins in better condition tend to reach higher prices.

2. Previous starting and hammer prices:
- The average starting price is 63.23 euros and the average hammer price is 97.45 euros.
- In previous auctions, the hammer price has varied considerably, with some auctions reaching up to 260 euros (in the case of a coin with a condition of 85).

3. Sales trends: The coin has been sold in 49 out of 56 auctions, indicating good demand. Additionally, the fact that it will be auctioned again soon suggests that interest in the coin remains.

4. Comparison with previous prices:
- In recent auctions, hammer prices for coins with similar conditions (70) have been around 70-120 euros.
- The last auction of a coin with a condition of 70 had a hammer price of 90 euros.

Based on these factors, an estimated maximum purchase price for this coin could be in the range of 90 to 120 euros. This is based on current interest, the condition of the coin, and previous hammer prices. However, since the auction market can be volatile, it is advisable to keep an eye on the auction and adjust the bid according to the competition.

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

1. Current Condition: The coin has a condition rating of 80 (MBC+), indicating 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 for this coin is 97 euros.
- In previous auctions, we have seen hammer prices that varied significantly, ranging from 35 euros to 300 euros, depending on the condition and other factors.
- The last auction for this coin had a hammer price of 180 euros with a condition of 85.

3. Starting Price and Average Starting Price:
- The current starting price is 50 euros, which is relatively low compared to the average hammer price.
- The average starting price is 55.53 euros, suggesting that the market is willing to pay more than the starting price.

4. Sales Trends: The coin has been sold in 17 out of 18 auctions, indicating good demand.

Based on these factors, an estimated maximum purchase price could be in the range of 150 to 200 euros, considering that the condition is good and that the price history shows that similar coins have reached higher prices in the past.

Therefore, a reasonable maximum purchase price could be 180 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), indicating that it is in fairly good shape, but not among the best qualities.

2. Historical Prices: Looking at previous auction prices for coins with similar conditions:
- In past auctions, coins with a condition of 70 have reached hammer prices of up to 95 euros.
- Coins with a condition of 85 have reached hammer prices of up to 220 euros.
- The last auction with a condition of 90 had a hammer price of 190 euros.

3. Average Hammer Price: The average hammer price for this coin is 130.45 euros, which is also a good indicator.

4. Starting Price and Average Starting Price: The current starting price is 15 euros, and the average starting price is 70.42 euros. This suggests that the starting price is quite low compared to previous hammer prices.

5. Recent Trends: In the most recent auction, a coin with a condition of 85 was hammered at 180 euros, indicating a growing interest in coins of good condition.

Taking all these factors into account, an estimated maximum purchase price for the coin with a condition of 75 could be in the range of 100 to 150 euros. This is based on the analysis of previous hammer prices and the current condition of the coin. A price of 120 euros could be a reasonable target, as it falls in the middle of this range and is consistent with previous hammer prices.

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

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. Current Starting Price and Previous Prices: The current starting price is 60 euros, and the average starting price in previous auctions is 114.29 euros. This suggests that the current starting price is relatively low compared to the historical average.

3. Previous Hammer Prices: The average hammer price in previous auctions is 224.23 euros. This indicates that, in general, coins of this reference have reached significantly higher prices in the past.

4. Auction Trends: The coin has been auctioned 13 times and has sold on all occasions, indicating consistent demand. Additionally, the fact that it will be auctioned again soon suggests that interest in the coin remains present.

5. Comparison with Previous Prices: Looking at previous hammer prices, the highest price was 800 euros for a coin in condition 100, and other hammer prices ranged from 150 to 480 euros for conditions of 85 to 90. This suggests that, although the current condition is lower, the price could be in a lower range.

Given all this, an estimated maximum purchase price could be set in a range between 150 and 250 euros, considering that the condition is 70 and the average hammer price is 224.23 euros.

Therefore, a reasonable maximum purchase price could be 200 euros. This allows for a margin for competition in the auction, given that the starting price is relatively low.

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

1. Coin Condition: The coin has a condition of 80 (MS+), indicating that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Previous Auction Prices: By observing the hammer prices of coins with similar conditions (around 80), we can see that they have reached hammer prices that vary considerably. For example:
- In 2019, a coin with a condition of 80 was auctioned for 170 euros.
- In 2020, another coin with a condition of 80 was auctioned for 80 euros.
- In 2023, a coin with a condition of 80 was auctioned for 120 euros.

3. Average Hammer Price: The average hammer price for this coin is 111.05 euros, providing a good reference point.

4. Current Starting Price and Recent Auction Prices: The current starting price is 60 euros, and the average starting price is 76.24 euros. This suggests that the market is willing to pay more than the starting price, especially considering the condition.

5. Market Trends: Given that the coin has been auctioned 186 times and has had a high sales percentage (167 out of 186), this indicates consistent demand.

Based on these factors, an estimated maximum purchase price for this coin could be between 120 and 150 euros, considering that the condition is good and there are precedents of higher hammer prices in the past. However, given the current market context and price trends, a reasonable maximum purchase price could be 130 euros.

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

1. Current Condition: The coin has a condition of 80 (MBC+). This is an important factor, as coins in better condition tend to reach higher prices at auctions.

2. Previous Hammer Prices: By observing previous hammer prices, we can see that in past auctions, coins with similar conditions have reached hammer prices that varied considerably. For example:
- In 2018, a coin with a condition of 90 sold for 650 euros.
- In 2023, a coin with a condition of 75 sold for 199 euros.
- In 2022, coins with a condition of 80 sold for 120 euros.

3. Average Hammer Price: The average hammer price for this coin is 180.13 euros, indicating that, in general, coins of this reference tend to sell for relatively high prices.

4. Starting Price and Average Starting Price: The current starting price is 60 euros, and the average starting price is 68.89 euros. This suggests that the starting price is reasonable, but it also indicates that there is potential for the hammer price to be significantly higher.

5. Auction Trends: Given that it has been auctioned 11 times in the past and 8 of those have sold, there is a good sell-through rate, suggesting that there is interest in this coin.

Based on these factors, an estimated maximum purchase price could be in the range of 180 to 250 euros, considering that the condition is good and there is a history of hammer prices that supports this estimate. A price of 200 euros could be a reasonable target, as it falls in the middle of previous hammer prices and reflects the current condition of the coin.

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

1. Condition: The coin has a condition of 75 (MBC), which indicates that it is in relatively good shape, but not among the best qualities. This can influence the price, as coins in better condition tend to fetch higher prices.

2. Auction history:
- The average hammer price for similar coins is 286.38 euros.
- In the past, coins with a similar condition (75) have reached hammer prices of up to 320 euros (in the auction of 2020-10-21).
- There are also examples of coins with higher conditions (such as 80 or 90) that have achieved significantly higher hammer prices, suggesting that the market is willing to pay more for coins in better condition.

3. Starting price and previous prices:
- The current starting price is 60 euros, which is relatively low compared to the average hammer price.
- In previous auctions, the starting price has varied, but the hammer price has been considerably higher in most cases.

4. Market trends: Since the coin has been auctioned 19 times in the past and has had a sell-through rate of 89.47% (17 out of 19), this indicates a consistent interest in this coin.

Based on these factors, an estimated maximum purchase price could be in the range of 250 to 300 euros, considering that the condition is 75 and the average hammer price is 286.38 euros. This allows for some margin for competition in the auction and the interest of other buyers.

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

1. Current Condition: The coin has a condition rating of 80 (MBC+), indicating that it is in quite good shape. This generally translates to a higher price compared to coins with lower conditions.

2. Starting Price and Average Hammer Price: The current starting price is 60 euros, and the average hammer price in previous auctions is 76.51 euros. This suggests that, on average, similar coins have reached prices above the starting price.

3. Sales History: In the past, the coin has had hammer prices that varied significantly, with some reaching up to 420 euros in exceptional conditions (such as in 2018). However, most hammer prices fall within a lower range, around 50 to 150 euros.

4. Recent Trends: In the most recent auctions, hammer prices have been in the range of 80 to 130 euros for coins with similar conditions.

5. Estimation Based on Historical Data: Given that the coin has a condition rating of 80 and considering the average hammer price and recent hammer prices, an estimated maximum purchase price could be in the range of 100 to 120 euros.

### Final Estimation
Taking all these factors into account, an estimated maximum purchase price for the coin could be 120 euros. This price reflects both the good condition of the coin and the historical hammer price trends in previous auctions.