Rare "Inverted Jenny" Returned To American Philatelic Research Library

NEW YORK, NY - JUNE 02: A rare stamp known as an "Inverted Jenny" is displayed at the World Stamp Show in Manhattan on June 2, 2016 in New York City. The stamp, one of the most famous stamps in American history, was stolen from a display case at a convention in 1955 and only located last March. The stamp, which features an airplane printed upside-down, only surfaced at a New York auction house in April when an Irish man who had inherited it brought it in. (Photo by Spencer Platt/Getty Images)