Bolivia

1968 Airmail – The 100th Anniversary of Bolivian Stamps

1968 The 100th Anniversary of Bolivian Stamps

1968 Airmail – South American Tennis Championships, La Paz

1968 South American Tennis Championships, La Paz

1968 The 100th Anniversary of the ITU, 1965

1968 The 5th Anniversary of the Death of John F. Kennedy, U.S President

1968 Airmail – The 5th Anniversary of the Death of John F. Kennedy, U.S. President

1968 The 20th Anniversary of the UNESCO, 1966

1968 Airmail – The 400th Anniversary of the Cochabamba, President G. Villarroel

1968 The 400th Anniversary of the Cochabamba, President G. Villarroel