2019-T3x, 2019 U.S. Christmas Seals Test Designs Sheet, R19-CSCS-4-10, reverse of sheet

2019 Test U.S. Christmas Seals

2019-T3x, 2019 U.S. Christmas Seals Test Designs Sheet, R19-CSCS-4-10

2019 Test U.S. Christmas Seals
2019 Test U.S. Christmas Seals