Tendances Demographiques ET Development 1965 First Day Cover

This is United Nations "Tendances Demographiques ET Development" First Day cover issued from New York on 29th November, 1965.

Art At The United Nations First Day Cover - Geneva 1972

This is "Art At the United Nations" series of 1972 First Day Cover from Geneva issued on 17th November, 1972.

United Nations Postal Administration Geneva 1969 First Day Cover

This is United Nations Postal Administration Geneva 1969 First Day Cover in my collection.

25th Anniversary of the Universal Declaration of Human Rights cover

This is 25th Anniversary of the Universal Declaration of Human Rights cover issued on 16th November, 1973 from Geneva in my collection.