COLT DETECTIVE SPECIAL - a six-shot, carbon steel framed, 2" barreled, double-action revolver, and the first example of a class of firearms known to gun enthusiasts as "snubnosed revolvers".
The Colt New Service was produced from 1898 to 1941 and was the first large-frame revolver made into a snub-nosed version, adopted by none other than F. Scott Fitzgerald himself.
1825 ca. - Percussion-cap guns are in general use. 1830 - The back action lock appears. 1835 - The first Colt revolver. Samuel Colt developed the first mass-produced, multi-shot, revolving firearms.