Nikolai Iwanowitsch Lieberich ( 1828 - 1883 ) was a Russian painter. Nikolai Iwanowitsch Lieberich s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 4051.11 USD for UNTITLED in 2004 to 45600 USD for A Russian patinated bronze group of an attacking bear in 2006 , based on the size and medium of the artwork.