50 Ngwee United Nations

Zambia joined the United Nations in 1964, the same year it gained independence from Britain, making the UN membership a near-simultaneous act with nationhood itself. This 1985 issue marks the 40th anniversary of the UN's founding — a commemorative rationale that produced similar coins across dozens of developing-world member states that year, many of which saw limited circulation and ended up held by collectors rather than spent.