Big Concho bit, with two large 3.5” sterling silver single point engraved conchos by Frank Rocha. This bit is from a 1970s archival collection of silver bridle bits from a California saddlery that closed 20 some years ago. The Mona Lisa mouthpiece measures 5 1/8” wide. This beautiful concho bit by Frank Rocha was meticulously stored for over 50 years and has never been used. In pristine perfect condition. Marked ROCHA.