50-5x, WX151, 1950 U.S. National Christmas Seals Sheet, pm F, full gum, F, MNH. Issued1950 by the National Tuberculosis Association. (NTA). Designed by Andre Dugo. Image of three young carolers. Firm, fresh, never folded, shipped flat.
Sheet of 100 (10x10) seals; colors: red, green, yellow, and black. Seal size: 21x26mm. Printer's Mark "F" on the green background below the double-barred cross, in the lower left corner of seal #56.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.
