Interior view of an unidentified automobile factory showing workers on an assembly line, ca.1925 

Interior view of an automobile factory showing a worker on an assembly line, ca.1925 

Interior view of an unidentified automobile company showing workers on the assembly line, ca.1925 

Interior of an automobile factory with assembly line, ca.1939 

Interior view of assembly line at the Chrysler factory in Commerce, CA, 1952-1953 

Workers assembling dashboards for automobiles in an unidentified factory, [s.d.] 

Interior view of an unidentified factory,showing workers from behind, ca.1940 

Exterior view of what appears to be a truck repair garage, ca.1925 

Interior view of unidentified factory, showing a single worker standing near the turbines, ca.1935 

Interior of an unidentified factory, showing two factory workers gripping a large piece of equipment, ca.1935 

Interior view of the assembly line at the Ford Motor Company plant in Long Beach, ca.1936 

Women workers on assembly line at the International Telemeter Corporation, ca.1940 

Factory workers putting sheets of rubber into a machine, ca.1945 

Interior view of an unidentified factory, with two suited men inspecting metal parts, while workers are on an assembly line in background, ca.1942 

Plant interior showing workers assembling transformers, ca.1930 

Interior view of an unidentified factory, showing three men at a large engine, ca.1940 

Lines of women workers in an electronics factory, showing some working on large disks, ca.1950 

Factory worker standing behind a tire-production machine, ca.1930 

Factory workers placing tires into molds, ca.1930 

Interior of an unidentified factory where a worker is "machining heat exchanger bodies", ca.1930