Smith & Wesson sold a small belt style "inside the pants" holster for their Safety Hammerless revolvers, circa 1900. They were made of a black. rubberized canvas, as recently invented by Goodrich, and had a metal belt hook/clamp attached to the back of the holster. A S&W logo was stamped on the front of the holster, in red or blue. I believe they were made by a vendor for S&W, as I've seen the identical holsters at gun shows & in collections, w/o the S&W logo. Perhaps one of our members has a photo of these holsters he/she can post. Ed