1978 Cyanamid Styrid Caricide Heartworm Prevention Ad

This is a 1978 ad for a Cyanamid Styrid Caricide Heartworm Prevention Tablets! The size of the ad is approximately 3.5x5.5inches. The caption for this ad is 'Heartworm disease. Here's the second-best way to prevent it' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collecction today!