Philadelphia: Historical Society of Pennsylvania, 1935.
Frontispiece portrait with tissue guard. Illustrated with many b/w plates. 362pp., short thick 4to, two-toned beige cloth. Philadelphia: Historical Society of Pennsylvania, 1935. Very good (+). Signed by both authors.
A comprehensive study of the life and career of Oliver Evans, the inventor of high-pressure steam engines. Scarce. Limited edition of 500 copies, this copy un-numbered.
Condition: Very Good(+)