“S” Curve by Allen, James E. (1894 - 1964)
Lithograph, full margins, edition of 60. Signed and inscribed “ed/60” in pencil, lower margin. Ryan 36. “a superb, richly inked impression w/ strong contrasts.”
 
Matted, Image size: 15.5in x 12in (39.4 x 30.5cm). 
Overall size 21in x 17in (53.3 x 43.2cm).
Made in: US, 1937 
Art-In-Industry collection number pp_500