These are JR Grips, sold by Bianchi early 70s. Indeed they were made by Al Lang at Mustang Grips, whose shop was nearby in Temecula. John Bianchi, who we called JB because there were so many Johns at the company, designed them. JR was his son John Richard, and they were sold as a project for his teen son as part of his becoming more a part of the business as he grew. Unfortunately for the best intentions of his father, JR first had a terrible dirt bike accident when another young man jumped his own bike and landed with his footpeg through JR's helmet and he was left retarded. Within a year he was a suicide by gun. His sisters found him. He was a lovely boy and I recall fondly taking him to the Superbowl of Motocross before his accident.
These were replaced with a design made using Pachmayr's rubber overmoulded grips with perforated steel inserts, due to breakage at the narrowest part of the wood grips.
Yours won't ever be valuable but they are a part of holster industry history.
Last edited by rednichols; 04-02-2017 at 04:34 AM.