The centennial stamp is the third saluting the sport; a 4-cent commemorative was issued in 1961 honoring Naismith as the founder and a 28-cent airmail stamp ... two panes of 10 stamps each ...

The auction also included one of stamp collecting’s most famous prizes, the so-called Inverted Jenny from 1918. The 24-cent airmail stamp features a biplane accidentally printed upside down.