105-1x2, 2005 U.S. National Christmas Seals Sheet, R06-CSCS-4-06, VF, MNH. Shipped flat. Scan of front and back.
Issued 2005 by the American Lung Association. Designed by Mark Maffin. Images of Snowman, Birds, Santa, and Angel, on silver foil sheet of 42 (6x4 + 6x3), with horizontal gutter between 4th and 5th row. Gift tags in 6th column. Seals are self-adhesive, serpentine die cut, SE3S, margin at bottom, backing paper with green "History of the First Christmas Seal." Silver margin scans much darker than actual color. R06-CSCS-4-06 in bottom Margin.
Christmas Seals are also known as TB Seals, and are usually classified as Charity Seals, or Cinderella Stamps.