51-4x, WX156, 1951 U.S. Christmas Seals Sheet, pm U, full gum, F, MNH. Issued 1951 by the National Tuberculosis Association (NTA). Designed by Robert Stephens, image of a Santa face. Fresh, vibrant color, 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: "U" 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.
