51-2x, WX156, 1951 U.S. Christmas Seals Sheet, pm S, full gum, F, MNH. Issued 1951 by the National Tuberculosis Association (NTA). Designed by Robert Stephens, image of a Santa face.Fresh, firm paper, full gum, shipped flat. Scan is of a full sheet.
Sheet of 100 (10x10), pink, black, red and green,. Seal size: 17x23mm, perf. 121/2.. Printer's mark: "S" located in center top of seal #56.
Sheets of 1951 Christmas Seals were printed by 5 printers. They can be identified by a tiny black "E, S, D, U, or F" on seal #56.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.
