United-States

1956 The 200th Anniversary of Nassau Hall, Princeton University

1956 Labor day

1956 Wheatland – Home of James Buchanan

1956 Pure food and drug law

1956 Wildlife Conservation – Wild turkey, Pronghorn Antelope & King Salmon

1956 Fifth International Philatelic Exhibition

1956 Fifth International Philatelic Exhibition – Statue of liberty

1956 Booker T.Washington

1956 The 250th Anniversary of the Birth of Benjamin Franklin

1955 The 100th Anniversary of Andrew Mellon