This chart is based upon both major and minor catalog numbers. The default opening view shows all US stamps; you can filter the chart by using the drop down box to select stamps by ‘Type’.
Catalog Number Description Denomination Color Date Issued Perforation Num Produced Series
C1 Curtiss Jenny 6c orange 12/10/1918 11
C2 Curtiss Jenny 16c green 7/11/1918 11
C3 Curtiss Jenny 24c carmine 5/13/1918 11
C3a Inverted 24c carmine 5/13/1918 11
C4 Radiator  and  Propeller 8c dark green 8/15/1923 11
C5 Airmail Service Insignia 16c dark blue 8/17/1923 11
C6 De Havilland Plane 24c carmine 8/21/1923 11
C7 U.S. Map and Mail Planes 10c dark blue 2/13/1926 11
C8 U. S. Map and Mail Planes 15c olive brown 9/18/1926 11
C9 U. S. Map and Mail Planes 20c yellow green 1/25/1927 11
C10 Spirit Of St Louis  and  Flight Route 10c dark blue 6/18/1927 11
C10a Spirit of St. Louis pane of 3 10c dark blue 5/26/1928 11
C11 Beacon on the Rocky Mountains 5c Carmine and Blue 7/25/1928 11
C12 Winged Globe 5c violet 2/10/1930 11
C13 Graf Zeppelin 65c green 4/19/1930 11
C14 Graf Zeppelin $1.30 brown 4/19/1930 11
C15 Graf Zeppelin $2.60 blue 4/19/1930 11
C16 Winged Globe 5c violet 8/19/1931 10½ x 11
C17 Winged Globe 8c olive Bister 9/26/1932 10½ x 11
C18 Century Of Progress 50c green 10/2/1933 11