Nikolai Konstantinovich Roerich ( 1874 - 1947 ) was a Russian Realism painter, known for mystical landscape and figure painting-symbolism. Nikolai Konstantinovich Roerich s works have been put up for auction numerous times, with realized prices greatly surpassing estimated prices, varying from 780 USD for ROERICH in 2009 to a remarkable record 5131022.14 USD for Madonna Laboris in 2013 , based