Profitable Postage. Montclair, N.J.: Acorn Printing Company, Inc., January 1936

Profitable Postage. Montclair, N.J.: Acorn Printing Company, Inc., January 1936, Volume: Gilbert Q160. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/527154 Accessed December 26, 2025.