Each set of five postcards is different from the next set.
Nicholas Roerich, also known as Nikolai Konstantinovich Rerikh ( October 9 [O.S. September 27] 1874 – December 13, 1947), was a Russian mystic, painter, philosopher, scientist, writer, traveler, and public figure. A prolific artist, he created thousands of paintings (many of them are exhibited in well-known museums of the world) and about thirty literary works. Roerich was an author and initiator of an international pact for the protection of artistic and academic institutions and historical sites (Roerich's Pact) and a founder of an international movement for the defence of culture. Roerich earned several nominations for the Nobel Prize.