Vintage 1933 Chicago Worlds Fair Century of Progress airplane pins presented on a rare original display card. These stamped metal pins feature a detailed biplane design with a rich aged patina, commemorating the "Supreme Thrill of 1933" International Exposition. The set includes eight individual pins, each with a fold-over tab backing for attachment. The original light blue display card shows significant wear, including staining and a tear at the bottom, but remains a remarkable piece of aviation and exposition history.