74-2.1x, WX252, ALA National Design 1974 U.S. Christmas Seals Sheet, pm F, full dull gum, F, MNH. Fresh, full gum, shipped flat. Scan is of front of sheet.
Issued 1972 by the American Lung Association (ALA). Designed by Rubidoux E. Johnson. Images of children on sled, dog and cat, mailman, snowman with children, all alternating on the sheet. Sheet of 100 (10x10) seals, SE3S, perforated margin at top, multicolored. Seal size: 17x22mm, perf 12-1/2. Printer's Mark F on seal #56 indicates Fleming-Potter Company. Vertical perfs run through margin.
This is mint, never hinged, full gum dealer stock.[p>
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.