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.