This is a Galco Holster known as the Concealable, model CON458B.
The Concealable(TM) holster is one of Galco's most recognizable and innovative belt holsters. Its unique two-piece construction is contoured on the body side to the natural curve of the hip" keeping all the molding on the front of the holster" allowing for significantly more comfortable carry and a narrower profile than an ordinary pancake type holster. Hand-molded to fit specific handguns" the Concealable features a deeply hand-molded exterior for excellent retention properties and superior appearance" firing grip accessibility for speed" double-stitched seams for durability" and covered trigger guard for safety. The Concealable is constructed of premium saddle leather and made to fit belts up to 1 1/2". It is made for both semiautomatic pistols and double-action revolvers.
Features:
premium steerhide
Full slide and barrel coverage
Butt-forward cant
Forward-molded design contours to the hip
Fits belts up to 1.50"