The Colt Fitz Special Revolver
The Colt FitzGerald Special, AKA The Fitz, AKA the Fitz Special, was the nationwide predecessor to what all shooters know now as the snub-nose revolver.
John Henry FitzGerald, a NYS Trooper and firearm enthusiast, became so good at recreationally modifying and perfecting his Colt revolvers at home, that in 1918 Colt hired him onto their team.