Rhodotorulic Acid; And Ammonium Sulfamate, From 40 Woodcut Spots
both image various sizes; both sheet approx. 16 x 15.5 cm
55 (+ 10 AP)
Two woodcuts in colours, on somerset textured paper, with full margins
Both signed in pencil on the front and numbered 28/55 in pencil on the reverse (there were also 10 artist's proofs), published by The Paragon Press, London, both framed.