An interesting overview:
In New York the week ended with Russian Trading Sotheby's and Christie's. There was a rival of equal strength: Nicholas and Svetoslav Roerich, Alexander Yakovlev, Boris Grigoriev, David Burliuk present in the catalogs of both auction houses. Lots was not unexpected - Sotheby's had in the assets of Ivan Aivazovsky's painting "Departure of Columbus from Palos, but Christie's has made the top lot" Portrait of Nicholas Roerich in Tibetan garb ", written by the artist's son, Svyatoslav. Both the lot met the expectations of the organizers of trades
Read more:
http://www.openspace.ru/art_times/au.../details/9606/
--------------------------------------------
1.Pavel Tchelitchew. Portrait Edalzhi Dinsho. 1940