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Description
Description from back of photograph: "This curious looking thing is a rotary tong. In operation it latches around the drill pipe and is used as a large wrench to screw or unscrew the drill pipe. These tongs are so heavy they must be suspended from the derrick and operated by power mechanism." Image appears to be identical to 33841 OS.
Type
image
Format
26.3 x 32.5 cm Black and white photograph
Identifier
14148 OS
Language
English
Subject
Petroleum industry and trade--Equipment and supplies Shell Oil Company
Place
California
Source
Ventura County Superintendent of Schools, Visual Aids Department, 1987
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