A Motor Driven Interrupter, number 48265, Rec. 3-10-1921, taken by Signal Corps photographer A., as part of the Photographs of American Military Activities during World War One collection. The image shows a Motor Driven Interrupter, identified as the second model produced by Universal Machine Co. in Baltimore, MD. HMFD. by 9048265.

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Size: 8438px × 5749px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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