Color chart in The technique of Colour Printing by Lithography
Color chart in The technique of Colour Printing by Lithography : a Concise Manual of Drawn Lithography by Thomas E. Griffits. London : Faber and Faber, 1944. NE2500 .G7
Color chart in The technique of Colour Printing by Lithography : a Concise Manual of Drawn Lithography by Thomas E. Griffits. London : Faber and Faber, 1944. NE2500 .G7