
History of Christmas Seals on the reverse of sheet.
2011-1x, 2011 U.S. Christmas Seals, Sheet/56 Mint!
The following sheets are test deigns available for 2011. Since 1979, the American Lung Association has issued test designs to determine the design of the national seal for the following year.

Sheet of 56 (8x7) without gift tags, margin on 4 sides, "Fighting for Air." Dated 2011 with "R12-CSCS-4-05 in bottom margin. Seal size: 17x24mm. Silver margin scans much darker than actual color.
History of Christmas Seals on the reverse of sheet.
2011-T1x, 2011 U.S. Christmas Seals, Sheet/64, Mint!

Sheet of 56 (8x7) without gift tags, margin on 4 sides, "Fighting for Air." Dated 2011 with "R12-CSCS-4-06 in bottom margin. Seal size: 17x24mm. Silver margin scans much darker than actual color.
History of Christmas Seals on the reverse of sheet.
2011-2x, U.S. Christmas Seals, Sheet/56 Mint!

Sheet of 56 (8x7) without gift tags, margin on 4 sides, "Fighting for Air." Dated 2011 with "R12-CSCS-4-07 in bottom margin. Seal size: 17x24mm. Silver margin scans much darker than actual color.
History of Christmas Seals on the reverse of sheet.
2011-T3x, 2011 U.S. Christmas Seals, Sheet/64, Mint!
Enjoy your collection,
Bill K-