OKLAHOMA CITY, OK—The nation’s top traditional cowboy artists will bring their finest works to Oklahoma City during the 21st Annual Traditional Cowboy Arts Exhibition and Sale, opening Oct. 4 and continuing through Jan. 5, 2020, at the National Cowboy and Western Heritage Museum. The show will feature 12 of the West’s leading cowboy artists—saddlemakers, silversmiths, rawhide braiders, and bit…