Instructions for Mounting, Using, and Caring for 4.72-Inch Gun, Armstron, 40 Caliber, Mounted On Barbette Carriage, Armstrong, Oct. 28, 1904

This technical manual provides detailed instructions for the maintenance and operation of a 4.72-inch gun mounted on a barbette carriage. Originally produced for the use of the United States Army, it is a fascinating resource for historians and enthusiasts of military technology.
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