Based on the data provided, we can observe that the coin has had an average auction closing price of 93.33 euros in previous auctions. Additionally, it has been auctioned three times in the past and has been sold on all those occasions.

Taking into account the condition of the coin (75 - VF) and the previous auction prices, where the estimated price has ranged between 50 and 150 euros, we could estimate a maximum purchase price of around 120 euros.

It is important to consider that the starting price on this occasion is 30 euros, so the final auction price may be above this figure. However, considering the historical data and the condition of the coin, an estimated maximum purchase price of 120 euros could be reasonable.