Jakob Bjork ( 1728 - 1793 ) was a Swedish painter. Jakob Bjork s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 12181.4 USD for ANNA ELISABET SILFVERSCHIÖLD in 2009 to a remarkable record 17920 USD for Hertig Karl (Konung Karl XIII) (1758-1818). in 2010 , based on the size and medium of the artwork.