The Colt 1903

The Colt Model 1903 Pocket Hammerless (not to be confused with the Colt Model 1903 Pocket Hammer) is a .32 ACP caliber, self-loading, semi-automatic pistol designed by John Browning and built by Colt Patent Firearms Manufacturing Company of Hartford, Connecticut. The Colt Model 1908 Pocket Hammerless is a variant introduced five years later in .380 ACP caliber. Despite the title ‘Hammerless’, the Model 1903 does have a hammer. It is covered and hidden from view under the rear of the slide. This allowed the pistol to be carried in, and withdrawn from a pocket quickly and smoothly without snagging. (source Wikipedia)