Selling their items at auctions abroad

[безумная мышь]

Hello, I am interested in this question - display whether anyone from the forum participants their belongings on foreign auctions, including Christie's and Sotheby's?

I know that this is time-consuming protsess.Hochetsya know how? What are the main difficulties arise with the display of paintings?

And another question - is there a difference go to the office of these auctions in Moscow or better once abroad?

I would be very grateful for the responses !