50 Dollars

The P#17 series ran for a decade with no major redesign, unusual for a denomination this size in the Pacific Island issuing groups of that period. De La Rue produced the notes in London under their standard security cotton substrate with a single watermark — modest by the printer's own capabilities, but reflecting the issuing bank's budget constraints rather than any design philosophy.

Solomon Islands achieved independence in 1978, and the Central Bank was established the same year. The 50 Dollar note sat at the top of the circulation ladder for much of the 1980s, which likely means heavily used survivors outnumber lightly circulated ones by a wide margin.