Olof Walfrid Nilsson ( 1868 - 1956 ) was a Swedish painter. Olof Walfrid Nilsson s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2231.31 USD for Winterkväll vid Dammen - Värmland in 2004 to 3055.63 USD for Sommarkväll, Värmland in 2013 , based on the size and medium of the artwork.