"Profitable Hobbies"; The New Mail Order and Hobby Paper. Pontiac, Mich.: V.G. Hodgeman, May 1935

"Profitable Hobbies"; The New Mail Order and Hobby Paper. Pontiac, Mich.: V.G. Hodgeman, May 1935, Volume: Gilbert C399. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527152 Accessed March 23, 2026.