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1940 s

1940 s women

40 s

angle

bar

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constants

degrees

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New York, New York. Class in the use of precision instruments, part of the government-sponsored industrial training program at New York University. Most of the students are women. Testing the angle of a machined part in degrees and minutes with a five-inch sine bar and vernier height gauge, and consulting a table of constants for a five-inch sine bar

New York, New York. Class in the use of precision instruments, part of...

Public domain photograph of a woman, female portrait, free to use, no copyright restrictions image - Picryl description

New York, New York. Class in the use of precision instruments, part of the government-sponsored industrial training program at New York University. Most of the students are women. Testing the angle of a machined part in degrees and minutes with a five-inch sine bar and vernier height gauge, and consulting a table of constants for a five-inch sine bar

New York, New York. Class in the use of precision instruments, part of...

Public domain photograph of New York in 1930s, free to use, no copyright restrictions image - Picryl description

Conversion. Farm implements to cargo winches. Making a vernier caliper measurement of a tooth on a cargo winch gear in a converted Midwest farm implement plant. The hobbing machine used in this operation formerly cut bull gears for plow tractors

Conversion. Farm implements to cargo winches. Making a vernier caliper...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description