This 30-cent stamp from the Netherlands (Nederland) was issued in 1963 to commemorate 100 years of international postal cooperation (1863–1963). The design features a bold geometric composition — a white ring set against blue and green fields — symbolizing global unity and communication across borders. The text “Internationaal Postaal Overleg” refers to the first international postal congress held in Paris in 1863, which laid the groundwork for the Universal Postal Union founded a decade later.

A minimalist and modern design typical of Dutch graphic excellence, this issue reflects the Netherlands’ role in promoting efficient international correspondence.