A worker at Gray and Davis, Inc. in Boston, Massachusetts, is seen finishing a Lowenhurtz thread on a fuse body in November 1918. The company was responsible for manufacturing and marking fuse adapters for military use during World War One.

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Size: 8565px × 5795px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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