U.S. National Christmas Seals, Progressive Color Proofs Collection, 1930-53, F, NH. Twenty four years of Progressive Color Proofs. All with full gum, except 1931 and 1937 which have disturbed gum, 1939 is with no gum, the 1936 and 1943 seals have a straight edge. The scan is an example of the seals you will receive.
A complete set of stages showing color plate separations and the final design.
Progressive Color Proofs are usually issued in sets to show colors separately and in combination.
Issued by the National Tuberculosis Association (NTA).
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.