Public domain
Albuquerque, New Mexico. Magnaflux inspector A.J. Fry at work on an engine wheel axle in the Atchison, Topeka and Santa Fe Railroad shop. The cable in his hand magnetizes the axle as he spreads steel dust over an area. He then cuts the current off and carefully blows the dust away. The steel particl
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Credit lineAlbuquerque, New Mexico. Magnaflux inspector A.J. Fry at work on an engine wheel axle in the Atchison, Topeka and Santa Fe Railroad shop. The cable in his hand magnetizes the axle as he spreads steel . 1943-01-01. Delano, Jack. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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