Factory worker manipulating a large white tire with machinery, ca.1930 

Three factory workers making beads (treads?) and working with machinery, ca.1945 

Close-up of machinery in a rubber factory, ca.1945 

Factory workers operating on machinery, showing pallet of buckets in foreground, ca.1930 

Factory worker spooling rubber on a conveyor belt, ca.1945 

Three workers rolling a large tire, ca.1950 

Factory worker manipulating a tube tire with machinery, ca.1930 

Three factory workers inspecting tires, ca.1950 

Factory workers loading and unloading molds in a tire factory, ca.1930 

Close-up view of factory worker adjusting a lidded piece of machinery, ca.1950 

Three factory workers standing at a table, working with rubber, ca.1930 

Factory worker making a large tire, ca.1950 

Woman factory worker sorting wrapped candy at a table, ca.1940 

Factory worker using tire vulcanizing molds, ca.1930 

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

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

Interior view of a factory, showing large hydraulic press at center, May 1937 

Interior of a factory with metal workers, ca.1930 

Unidentified factory interior, showing workers adjusting a small slab beneath a large machine, ca.1930 

Factory workers placing tires into molds, ca.1930