1969-81 U.S. National Christmas TB Seals, Imperforate Collection, as required. Twelve different imperforate pairs, blocks or sheets, F/VF, MNH. Collection consists of: blocks of 4: 1969, 1974; block of 8: 1971; strip of 10: 1972; block of 20: 1973; and full sheets: 1970, 1975, 1976, 1977, 1978, 1979, 1980, as required by the various catalogs and albums. This is an inexpensive way to complete an imperforate seal collection.
Scan is an example of the contents of this seal collection. However, the scan does not fully illustrate the vibrant colors of the collection.
Imperforate seals or sheets have no perforations or rouletting at all.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.