The Flying Red Horse magazine. unknown place: The Socony-Vacuum Oil Company, Inc., September 1937

The Flying Red Horse magazine. unknown place: The Socony-Vacuum Oil Company, Inc., September 1937, Volume: Gilbert E93. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/525973 Accessed December 27, 2025.