South America

1942 New National Postal Savings Bank Building WM: 9

1941 The 100th Anniversary of the Death of General Juan Lavalle, 1797-1841 WM: 9

1941 The 50th Anniversary of the National Bank WM: 9

1941 General J.A. Roca Monument WM: 9

1941 The 100th Anniversary of the Death of Marco Manuel de Avellaneda, 1813-1841 WM: 9

1941 General French and Colonel Beruti WM: 9

1940 Airmail WM: 9

1940 The 100th Anniversary of the Postage Stamps – Philatelic Exhibition, Cordoba WM: 9

1940 The 50th Anniversary of the Pan American Union WM: 9

1939 Fonopost-Experimental Postal Service WM: 9