Description Original employee time table issued by the Union Pacific Railroad Company for its South-Central District, California Division. Time-Table No. 23, effective Sunday, January 12, 1958 at 12:01 A.M. Pacific Time. Front cover features a regional rail map covering parts of California, Nevada, and Arizona, along with the Union Pacific safety emblem. Issued for employees only, not public distribution. ⸻ Historical Value Railroad employee timetables were essential internal documents used for train operations, dispatching, and safety compliance. Mid-20th-century Union Pacific timetables like this one reflect post-war rail traffic, desert routes, and operational standards during the transition era before widespread diesel standardization was fully mature.
