Nikolai ROERICH  CLOUDS. Pastel on board, signed with monogram and dated 1919 low right; numbered #72 in Roerich’s handwriting on the back; 21 x26 inches. In the blackened wooden frame evidently selected by the artist himself with title label on it. Authenticity confirmed by New York Roerich Museum (Senior Researcher Gvido Trepsa 07.12.2012)  and by the department "Roerich Inheritance" of The Moscow State Museum of the East (Senior Scientific Researcher D. Popov) 01.06.2013