2009-T2x, 2009 U.S. Christmas Seals Test Design Sheet, R10-CSCS-4-12, VF, MNH. Issued 2009 by the American Lung Association (ALA). 45 different old Christmas Seal Designs, all with white border.
Sheet of 45 different 1913// 1992, with various size seals, margin on 4 sides. Roulette with re moist gum. “R10-CSCS-5-12” on vertical gutter.
Reverse of sheet is blank.
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 Seals, and are usually classified as Charity Seals, or Cinderella Stamps.