Uruguay Scott #1983 MNH Pan-American Health Organization CV$4+
Bolivia Scott #890 MNH Pan-American Health Org. $$ 434777
Bolivia Scott #680 MNH Bolivian Japanese Medical Coop $$ 434762
Bolivia Scott #1195 MNH Pan American Health Org Maps CV$3+ 429986
Argentina Scott #737 COVER Malaria, Friendship 7 Space Capsule $$ 378191
Venezuela Scott #1412 MNH Antipolio Campaign Victory Day $$