2 Pa'anga - Taufa'ahau Tupou IV FAO

The FAO coinage program, launched in 1968, persuaded dozens of governments to issue special-purpose coins nominally promoting Food and Agriculture Organization objectives — in practice, many were straightforward numismatic revenue generators dressed in agricultural imagery. Tonga's participation fit the broader Pacific pattern: small island economies discovered that collector demand for exotic issues from remote sovereignties could quietly supplement foreign exchange reserves.

Taufa'ahau Tupou IV, who reigned from 1965 until his death in 2006, was an unusually active participant in Tonga's experimental coinage programs of the 1970s, which included some of the world's first official non-round legal tender pieces.