80-3x2, 1980 U.S. Christmas Seals Sheet, pm large B, F, MNH. Although over 20 yrs old, fresh, full gum, never folded, shipped flat. Scan is of a full sheet.
Issued by the American Lung Association (ALA). Images of Children's art, similar to 1975, designed by school children from each state, Puerto Rico, Virgin Islands, D.C., and Guam (54 different). Sheet of 54 (6x9), multicolored. Seal size: 30x25mm. Printer's Mark: large "B" in upper right corner on seal #28 (Missouri), uncoated dull paper, "Allied Printer's Trade Council, Baltimore 3" union label. Very scarce and unpriced in Green's Catalog.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.