U. S. Scott C18 50 Cent Century of Progress Zeppelin XF-SUP MNH Updated on December 27, 2023 By admin Comments Off Scott C18, the 50 cent Century of Progress Zeppelin stamp in Mint No Hinge XF-SUP condition. Attractive almost perfectly centered stamp. Share Tweet By admin You May Also Like U. S. (Scott C13) AIRMAIL 65¢ GREEN GRAF ZEPPELIN (MFNH) FINE, NEVER HINGED US Scott #C3 Airmail Single VF Mint Never Hinged Issued 1918 Fast Plane Variety