1954-4px, 1954 U.S. National Christmas TB Seals, Imperforate Proof Sheet of 100 seals, pm "U", F, No Gum, NH. Firm paper, fresh, never folded, shipped flat. Scan is an example. Full scan of front and back available upon request.
Issued 1954 by the National Tuberculosis Association (NTA). Designed by Jorgen G. Hansen. Issued in se-tenant blocks of four (4) seal designs alternating in the sheet.
Printed by the Umited States Printing and Litho. Co.Imperforate sheets have no perforations or rouletting at all.
Christmas Seals are also known as Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.