Printed color postcard depicting Paul Winchell with both dummy figures Jerry Mahoney and Knucklehead Smiff, the reverse identifying the act as appearing on NBC-TV every Saturday morning. Published by Koppel Color Card, Hawthorne, New Jersey, this card documents a later phase of Winchell's television career when the Knucklehead Smiff character joined Jerry Mahoney as a regular performing partner. The inclusion of both dummy characters in the image makes this card visually distinct from the companion Winchell ABC-TV card in this grouping, which features Jerry Mahoney alone. Together the two color Winchell cards document his presence on both ABC and NBC television networks across different periods of his career, making the pair a useful comparative reference for Winchell collectors and researchers. The front bears the printed text: Printed color portrait of Paul Winchell with Jerry Mahoney and Knucklehead Smiff. The reverse reads: Printed POST CARD reverse published by Koppel Color Card Hawthorne NJ with NBC-TV Saturday morning broadcast details. Handwritten inscriptions read: Pencil catalog notation visible.