A painting by werner holmberg, based on his 1858 watercolor of the norwegian powder mill in ljan. The painting was bought in 1881 from the exhibition of the finnish art association for the helsinki imperial palace (now the presidential palace), where it is still located. Object Type: painting. Date: 1859. Dimensions: height: 38.5 cm (15.1 in); width: 57 cm (22.4 in). Medium: oil on canvas. Holmberg Norjalainen myllymaisema