Basketball Hall of Famer. As a member of the Original Celtics, ‘Dutch’ Dehnert is credited with perfecting the pivot play, first used against a strong local club in Chattanooga, TN. This simple, yet revolutionary maneuver became the focus of the Celtics' attack. Ballpoint signature and inscription, “To John J. Smith, Henry ‘Dutch’ Dehnert, Creator Pivot Play, Original Celtics, Coached Detroit Eagles World’s Pro Champs 1940,” on an off-white 5 x 3 card, dated March 2, 1954. In fine condition, with two red edge margins. COA Steve Grad/PSA/DNA and R&R COA.