Given that the coin has a grade of 95 (S/C-), which is a very high grade, and considering that this is the first time it is being auctioned, the starting price is set at 1500 euros.

In previous auctions, coins with similar grades have reached hammer prices that are often significantly higher than the starting price, especially if demand is high. However, since there are no historical sales data for this particular coin, it is difficult to make an accurate estimate.

Taking into account the grade and the starting price, a maximum estimated purchase price could be in the range of 2000 to 2500 euros, depending on the competition in the auction and the interest from collectors. This is based on the trend that coins in similar conditions can achieve prices above the starting price.