1977 – Mongolia & UNICEF

In honour of the humanitarian efforts led by UNICEF, the Mongolian post office issued a commemorative collection of stamps featuring depictions of native Mongolian children dressed in traditional Mongolian clothing.

1976 – Fight against drug addiction and smoking (Czechoslovakia)

Raising awareness about drug addiction and smoking has been one of the missions led by the World Health Organization ever since its foundation. The Czechoslovakian post office wasn’t excluded with this unique stamp released in 1976.