120-T3, 2020 U.S. Test Design Christmas Seals, As Required Strip of 7 Designs, VF, MNH. Issued 2020 by the American Lung Association (ALA). Artwork by Simon Treadwell/Advocate Art.. Imaqes of snowman, puppy with presents, Santa, birds in winter scene, Christmas Tree, child with puppy, snowman with children. Multicolored, self-adhesive, serpentine die cut. All images trimmed in white within green border. "Christmas Seals 2019" at top of each Christmas Seal.
These are test designs. Since 1979, the American Lung Association has issued test designs to determine the design of the national seal for the following year.
Christmas Seals are also known as TB Charity Seals, and are usually classified as Charity Seals, or Cinderella Stamps.