The Bookmatch Cover Collector. New York: International Bookmatch Cover Club, April 1935

The Bookmatch Cover Collector. New York: International Bookmatch Cover Club, April 1935, Volume: Gilbert C69. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525342 Accessed December 26, 2025.