This is a DeSantis Gunhide Holster known as the 083, model 083BC53Z0.
The style 083 is an authentic replica of the 1800's gentleman's holster. It is right at home riding on their popular Desperado(TM) Gun Belt" style B37" or on your favorite western belt. It is designed to be worn on the weak side cross draw. Available in black or tan lined leather. Accommodates Colt SAA 3 1/2" or 4 3/4". Accommodates belts up to 2 1/4" wide.
Features:
Made from fully lined premium saddle leather
An authentic replica of the 1800's gentleman's holster
Made to be worn cross draw
Accommodates belts up to 2 1/4 wide;Pairs well with the B37 Desperado Gun Belt