(3) Chinese Ink Stick from the George Rowney & Co. Artists’ Colourmen Color Box, 1862-1881, Art Materials Research and Study Center, National Gallery of Art, Washington, D.C.








(3) Chinese Ink Stick from the George Rowney & Co. Artists’ Colourmen Color Box, 1862-1881, Art Materials Research and Study Center, National Gallery of Art, Washington, D.C.