1952

52-1x1, WX159, 1952 U.S. Christmas Seals Sheet, pm E, no Union Label

52-1x2, WX159, 1952 U.S. Christmas Seals Sheet, pm E, with Union Label

52-2x, WX160, 1952 U.S. Christmas Seals Sheet, pm S

52-3x1, WX160, 1952 U.S. Christmas Seals Sheet, pm D, no Union Label

52-3x2, WX160, 1952 U.S. Christmas Seals Sheet, pm D, with Union Label

52-4x1, WX160, 1952 U.S. Christmas Seals Sheet, pm U, without Union Label

52-4x2, WX160, 1952 U.S. Christmas Seals Sheet, pm U, with Union Label

52-5x2, WX160, 1952 U.S. Christmas Seals Sheet, pm F, with Union Label

52-5px, 1952 U.S. National Christmas Seals, Imperforate Proof Sheet No UL, NG