High Spots of "Death Valley Days". unknown place: Pacific Coast Borax Company, 1939

High Spots of "Death Valley Days". unknown place: Pacific Coast Borax Company, 1939, Volume: Gilbert B115. Robert L. Gilbert First Issues collection, Gilbert. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/526178 Accessed December 26, 2025.