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Bayani12-inch gun M1895-railway-gun (4).jpg
English: 12-inch gun M1895-railway-gun at max elevation
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Railway Artillery: A Report on the Characteristics, Scope of Utility, Etc., of Railway Artillery, Volume II, page 46 by Harry W Miller, United States Army Ordnance Department. Washington, Government Print Office, 1921. Downloaded from http://www.eugeneleeslover.com/ENGINEERING/Railway_artillery1.pdf