William Gamble (Ed.) Penrose's Annual. The Process Year Book, Lund Humphries, 1910-16, 1920-1939, & 1946, a collection of 26 different volumes, in the original publisher's bindings, plus two additional 1930 volumes; seven volumes from 1913 to 1924 with some loose plates, some illustrations having been apparently removed. Very clean internally. (28)