116-T3x, 2016 U.S. Christmas Seals Test Designs Sheet, R17-CSCS-4-11, reverse of sheet

2016 Test U.S. Christmas Seals

116-T3x, 2016 U.S. Christmas Seals Test Designs Sheet, R17-CSCS-4-11
2016 Test U.S. Christmas Seals
2016 Test U.S. Christmas Seals