20 Cents - Elizabeth II 3rd portrait

The Solomon Islands gained independence from Britain in 1978, and the currency infrastructure that followed was built almost from scratch under the newly established Central Bank. This 20-cent denomination filled a practical gap in everyday commerce across an archipelago where inter-island trade relied heavily on small-denomination coinage rather than notes, which fared poorly in the humid Pacific climate.

The shift to nickel-plated steel from the earlier nickel-brass composition reflected broader Commonwealth mint cost-cutting through the 1980s, a pattern seen across numerous Pacific island issues of the period.