Oluf Hartmann ( 1879 - 1910 ) was a painter. Oluf Hartmann s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 447.94 USD for Stående mandlig model. in 2003 to 5857.05 USD for Tree trunk at Skejten by Fuglsang, Denmark in 2014 , based on the size and medium of the artwork.