117-T1, 2017 U.S. Test Design Christmas Seals, As Required Strip of 7 Designs, VF, MNH. Issued 2017 by the American Lung Association (ALA). Designed by Deva Andrews/Pure Design Group. Images of Santa with gifts, filled Christmas stockings, child pulling sled filled with Christmas gifts, snowman with animals, Christmas wreath, decorated fireplace, trimmed house. All images trimmed in green within red border. Christmas Seals 2017 at bottom of each seal. Multicolored, self-adhesive, serpentine die cut, all images trimmed in green within red border. Christmas Seals 2017 at bottom of each 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.