Us Official Photographs

Rockwell hardness tester at Port Moresby Air Depot

1943-10-25

A Rockwell hardness tester is operated by a member of the 27th Air Depot Group at the Port Moresby Air Depot, Papua, New Guinea. 25 October 1943.

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Public domain original. Copyright in the photograph has expired. What you buy is our reproduction and the research attached to it.

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