1974 UPU Centenary
1974 ILO Headquarters
1973 Drug Abuse
1973 United Nations Volunteer Program
1973 Namibia
1972 Art-Sert Ceiling
1973 Disarmament Decade
1971 Eliminate Racial Discrimination
1972 Environment
Human Rights Day in 1973 marked the 25th anniversary of the adoption of the Universal Declaration of Human Rights. This is tenth commemorative stamp set in the Human Rights Series.