Based on the provided data, we can observe that the coin in question had a starting price of 45 euros in the most recent auction, with a conservation value of 70 (MBC-). Additionally, it has been auctioned several times in the past, with final prices ranging between 45 and 300 euros.

The average starting price of this coin has been 89.44 euros, while the average final price has been 147.5 euros. In previous auctions, the estimated price has varied between 40 and 400 euros, depending on the date and conservation conditions.

Taking into consideration this data, as well as the price and conservation history of the coin, and considering the current conservation value of 70 (MBC-), my estimate for a maximum purchase price would be around 150-200 euros. It is important to note that the final price may vary depending on factors such as demand at the time of the auction and the willingness of buyers to bid on this particular coin.

Based on the provided data, we can see that the coin in question has a grade of 30 (BC+), with a starting price in the current auction of 25 euros. Additionally, it has been auctioned in the past three times, with an average starting price of 60 euros and an average closing price of 85.67 euros.

Two specific prices from previous auctions are also given:

1. In the auction on May 27, 2014, the coin had a starting price of 125 euros, an estimated price of 250 euros, and closed at 130 euros.
2. In the same auction on May 27, 2014, the coin had a starting price of 30 euros, an estimated price of 50 euros, and closed at 35 euros.

Since the coin has sold in all previous auctions, we can assume there is demand among collectors. Considering the grade of 30 (BC+), the current starting price of 25 euros, and the prices from past auctions, we could estimate a maximum purchase price of around 100-120 euros. This estimation is based on the fact that the average closing price in past auctions was 85.67 euros and considering the coin's history of selling in all previous instances.

Therefore, an estimated maximum purchase price for this coin in the current auction could be around 100-120 euros.

Based on the data provided, we can observe that the coin in question has had a starting price in the current auction of 30 euros and is in a conservation grade of 70 (MBC-). Additionally, it has been auctioned in the past on several occasions, with varying starting and estimated prices.

The average starting price of the coin in previous auctions has been 56.96 euros, while the average final price has been 77.1 euros. Regarding the previous prices of this coin, we can see that they have ranged from 15 euros to 120 euros, with estimates ranging from 25 euros to 200 euros.

Given that the current conservation grade of the coin is 70 (MBC-), and considering the previous prices and estimates, as well as the average final price, we could estimate a maximum purchase price of around 90-100 euros for this coin in the current auction. It is important to note that the final price may vary depending on the demand at the auction and other factors that may influence the decision of potential buyers.

Based on the data provided, we can observe that the coin in question has had a starting price of 30 euros in this auction and is in a conservation grade of 70 (MBC-). Additionally, it has been auctioned in the past on several occasions, with closing prices ranging between 125 and 370 euros.

Considering that the average closing price in previous auctions has been 167.5 euros and that the highest estimated price was 500 euros, we could estimate a maximum purchase price for this coin in the current auction around 400 euros, taking into account its conservation and the history of previous prices.

Of course, it is important to consider that the final auction price will depend on various factors, such as the demand at that specific moment, the competition from other bidders, and the interest generated by the coin in question.

Based on the data provided, we can observe that the coin in question has had a starting price of 30 euros in this auction, with a conservation grade of 70 (MBC-). Additionally, it has been auctioned five times in the past, always selling, with average starting and closing prices of 78 and 135 euros respectively.

When analyzing the previous prices of this coin, we see that it has had significant variations in its auction values. For example, in the 2016 auction it had a starting price of 150 euros and a closing price of 185 euros, while in the 2022 auction it had a starting price of 60 euros and a closing price of 240 euros.

Given that the conservation grade of the coin is 70 (MBC-), and considering the previous prices from past auctions, as well as the current starting price and average starting and closing prices, we could estimate a maximum purchase price around 200-220 euros for this coin in the current auction. It is important to note that the final value may vary depending on demand and other factors in the auction.

Based on the provided data, we can see that the coin in question has a grade of 30 (BC+), indicating that it is not in the best condition, but it is not the worst either.

Historically, the coin has had the following starting and estimated prices in previous auctions:

- In 2018, it was auctioned with a starting price of 40 euros and an estimated price of 60 euros.
- In 2017, it was auctioned with a starting price of 75 euros and an estimated price of 125 euros.
- In 2017, it was auctioned with a starting price of 60 euros and an estimated price of 80 euros.
- In 2016, it was auctioned with a starting price of 45 euros and an estimated price of 70 euros.
- In 2022, it was auctioned with a starting price of 30 euros and a grade value of 70.
- In 2023, it was auctioned with a starting price of 50 euros and an estimated price of 90 euros.

The average auction closing price for the coin has been 79.33 euros.

Given that the coin has been auctioned multiple times in the past with estimated prices ranging from 60 to 125 euros, considering the current grade of the coin, the average closing price, and the previous estimated prices, my estimation for a maximum purchase price would be around 100 euros. However, please note that the final price will depend on the demand at the auction and other factors that may influence buyers' decisions.

Based on the data provided, we can observe that the coin has had an average auction closing price of 63.04 euros in previous auctions. Additionally, the condition of this coin has been described as '75 (VF).'

Considering that the condition of the coin is 75 (VF) and the average closing price has been 63.04 euros, we can estimate a maximum purchase price around that value or slightly higher, taking into account the trend of previous prices.

Therefore, an estimated maximum purchase price for this coin in the upcoming auction could be around 65-70 euros. It is important to note that this is just an estimate and the final price may vary depending on demand and other factors in the auction.

Based on the data provided, we can observe that the coin in question has had varying starting and final prices in previous auctions. The current condition of the coin is estimated at 70 (VF+), indicating that it is not in the best condition, but also not in the worst.

The average starting price in previous auctions has been 53 euros, while the average final price has been 72.75 euros. Additionally, it has been auctioned 10 times in the past, being sold in 8 of those occasions.

Taking into account the previous prices of the coin, its current condition, and the fact that it has sold in the majority of previous auctions, we could estimate a maximum purchase price around 80-90 euros. Since the final price has been on average higher than the starting price, and considering the condition and demand for the coin, a price in that range could be a reasonable estimate for a potential purchase.