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

1971 U.S. Christmas Seals

1971 U.S. Christmas Seals Sheet Collection
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