1959 Airmail – Organization of American States Commemoration

1965 Death of Missionaries in Ecuador’s Eastern Forests 1965 The 100th Anniversary of Benigno Malo College 1965 The 100th Anniversary of National Anthem 1965 The 5th Bolivar Games – Quito, Ecuador 1965 Airmail – The 5th Bolivar Games – Quito, Ecuador 1965 The 100th Anniversary of Stamps of Ecuador 1966 The 100th Anniversary of ITU 1966 Airmail – The 100th Anniversary of ITU 1966 Airmail – The 100th Anniversary of ITU 1966 Airmail – The 100th Anniversary of ITU 1966 Airmail – The 100th Anniversary of ITU 1966 Airmail – The 100th Anniversary of ITU 1966 Achievements in Space Exploration