Aviation pioneer (1893-1976) who made the first non-stop flight from New York to Germany. Vintage 5.5 x 3.25 promotional photo card of a large group of people lined in front of a Curtis T-32 Condor biplane, with an inset oval portrait of pilot Clarence Chamberlin to the upper left, signed vertically in pencil, "Clarence D. Chamberlin." The card also bears a facsimile autograph in black. In fine condition. Encapsulated in a PSA/DNA authentication holder.