National Museum of American History
Cosmopolitan Carbine
Gwyn, Edward · ca 1862
The Cosmopolitan carbine was patented by Edward Gwyn and Abner Campbell in 1862 and manufactured at their Cosmopolitan Arms Company in Hamilton, OH. The double loop lever lowered the breech block for loading a .52 caliber paper cartridge. The State of Illinois purchased 1,140 Cosmopolitans for use by the Illinois Cavalry. The Cosmopolitan was not popular with the troops but garnered many nicknames including Union, Ohio and Grapevine.
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