South America

1970 The 200th Anniversary of the Birth of General Manuel Belgrano

1970 Child Welfare – Birds WM: 13

1970 Personalities and Local Motifs WM: 13

1970 Airmail Stamps WM: 13

1969 Christmas WM: 13

1969 The 50th Anniversary of Lions International WM: 13

1969 National Development Projects WM: 13

1969 Aeronautics Week WM: 13

1969 Argentine Musicians WM: 13

1969 The 100th Anniversary of the Death of General Angel Pacheco WM: 13