1950s
Irrigation systems - stand pipes and water channels - in the Imperial…
Views of workers and the assembly line of plastic cup manufacturing, at…
1940s
tailoring, men's clothing factory
men observing process of tailoring men's clothes
1960s
machines build televisions
milk/dairy processing machines
Lumber industry, deforestation
coal miners at work
1980s
Pollution, factory, smokestacks.
Steel factory demo.
1970s
bulldozers and other earthmovers at work
Guitar manufacturing
