116-T5x, 2016 U.S. Christmas Seals Test Designs Sheet, R17-CSCS-4-13, reverse of sheet

2016 Test U.S. Christmas Seals

116-T5x, 2016 U.S. Christmas Seals Test Designs Sheet, R17-CSCS-4-13
2016 Test U.S. Christmas Seals
2016 Test U.S. Christmas Seals