File:Navy hypervelocity gun is readied to fire.jpg

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Description
English: Navy’s 40-mm Helium “hypervelocity gun” is readied for test firing at the Naval Ordnance Laboratory, White Oak, Md.
Date
Source Military Review, July 1956, Page 69
Author U.S. Navy

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Public domain
This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.

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current10:56, 14 May 2018Thumbnail for version as of 10:56, 14 May 2018754 × 505 (123 KB)ВоенТех (talk | contribs)User created page with UploadWizard

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