2015-T4x, 2015 U.S. Christmas Seals Test Designs Sheet, R16-CSCS-4-09, back of sheet

2015 Test U.S. Christmas Seals

2015-T4x, 2015 U.S. Christmas Seals Test Designs Sheet, R16-CSCS-4-09
2015 Test U.S. Christmas Seals
2015 Test U.S. Christmas Seals