71-3x, WX246, 1971 U.S. Christmas Seals Sheet, pm B, reverse of sheet

1971 U.S. Christmas Seals pm B

71-3x, WX246, 1971 U.S. Christmas Seals Sheet, pm B
1971 U.S. Christmas Seals 1971 U.S. Christmas Seals
1971 U.S. Christmas Seals pm E 1971 U.S. Christmas Seals
1971 U.S. Christmas Seals pm F 1971 U.S. Christmas Seals pm F
1971 U.S. Christmas Seals pm B 1971 U.S. Christmas Seals pm B