Rare Documented Samuel Colt Presentation English Cased and Engraved London Model 1851 Navy Percussion Revolver Presented to Admiral Sir Thomas CochraneThis early production London Colt Model 1851 Navy revolver was manufactured circa. 1853 and is pictured and discussed in the Man at Arms Vol. 15 No. 3 from 1993 (copy included). The article "To the Admiral & the Commodore: Compliments of the Inventor-The Story of Two Famous Colt London Navy Pistols by Joseph G. Rosa notes that the revolver has ...