50 Cents - Elizabeth II 2nd portrait

The Cayman Islands began issuing its own coinage in 1972, the year the territory introduced the Cayman Islands dollar under the Currency Law of 1971 — breaking from the use of Jamaican currency that had circulated there for decades. Britain retained sovereignty, which is why Machin's second portrait of Elizabeth II appears on these issues rather than a locally commissioned design.

The .925 silver content was a deliberate choice to attract collector sales alongside circulation; the territory's government leaned heavily on numismatic revenue in its early years of monetary independence.