Essays & Proofs

Printer's Proofs

Progressive Proofs (PCPs)

Essays

Die Proofs

Imperforate Proofs

1937-1pcp, WX88, 1937 U.S. National Christmas Seals, PCPs, 7 stages

1938-1pcp, WX92, 1938 U.S. National Christmas Seals, PCPs, 7 stages

1939-1.2pcp, WX96, 1939 U.S. Christmas Seals, PCPs, NG

1940-1pcpA, WX100, 1940 U.S. Christmas Seals, PCPs, MNH

1941-1pcp, WX104, 1941 U.S. Christmas Seals, PCPs, MNH