compressor

1950s

13163_10682_natural_gas2

This clip shows the process of air drilling for natural gas in…

1950s

13163_10682_natural_gas1

This clip shows the process of mining natural gas from the ground, from…

1930s

13161_40773_steel9

WS of a steel manufacturing plant, conveyer belt and workers below. CU…

1930s

13161_40773_steel12

CU of steel workers taking a break, inside a manufacturing plant. CU of…