117-T1x, 2017 U.S. Christmas Seals Test Designs Sheet, R18-CSCS-4-09, reverse of sheet

2017 Test U.S. Christmas Seals

117-T1x, 2017 U.S. Christmas Seals Test Designs Sheet, R18-CSCS-4-09
2017 Test U.S. Christmas Seals
2017 Test U.S. Christmas Seals