1969 Intl Labor Oranization, 50th Anniv.
1970 Peace, Justice and Progress
1968 World Weather Watch
1969 Institute for Training & Research
1970 Japanese Peace Bell
1969 United Nations Building, Chile
1971 Support Refugees
1970 Peace & Progress
1970 Mekong Delta Developement
1970 Against Cancer
1970 Peace & Progress, S/S
1967 Towards Disarmament
1969 United Nations Intl Commission
1968 Industrial Develop. Organization
1971 Peaceful Uses of the Sea Bed
1969 13c Definitive
1967 International Tourist Year
1971 World Food Program
1971 United Nations Intl School
1968 Intl Human Rights Year
Celebrate America's 1st National Park - Yellowstone turned 151 on March 1st!
Revolutionary era stamps remember the fight for Philippine independence.
Part of the Art at the U.N. Series, this issue reproduced a section of the mosaic given to the United Nations by the Tunisian Republic. The third-century mosaic was found at Haidra, Tunisia.