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
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
C19 Winged Globe 6c dull orange 6/30/1934 10½ x 11
C20 Century of Progress 25c blue 11/22/1935 11
C21 Century of Progress 20c green 2/15/1937 11
C22 Century of Progress 50c carmine 2/15/1937 11
C23 Century of Progress 6c deep blue  and  carmine 5/14/1938 11
C24 Winged Globe 30c dull blue 5/16/1939 11
C25 Twin-motored Transport Plane 6c carmine 6/25/1941 11x10½
C25a Twin Motored Transport Plane 6c carmine 3/18/1943 11 x 10½
C26 Twin-motored Transport Plane 8c olive green 3/21/1944 11x10½