1967 Lyman Shotgun Choke Ad - 3-barreled Shotgun?

This is a 1967 ad for a Lyman Shotgun Choke! The size of the ad is approximately 4.5x5.5inches. The caption for this ad is '3-Barreled Shotgun?' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collection today!