Actually, now I remember: when I gave the picture up for auction in a hospice, no reserve price, I was not asked, and asked just how much I'm willing to sell, was asked to deliver a smaller, well, I would put.
But with a price started bidding, I do not know, I know only a finite, but now this forgotten
Certainly there is the established practice of charity auctions, so as not to reinvent the wheel, and skontsentrirovta their energy on more useful things, you just need to ask, for example, Mr. Tyuhtina.