2019-T4x, 2019 U.S. Christmas Seals Test Designs Sheet, R19-CSCS-4-11, reverse of sheet

2019 Test U.S. Christmas Seals

2019-T4x, 2019 U.S. Christmas Seals Test Designs Sheet, R19-CSCS-4-11

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