100 Dollars - Elizabeth II B Series, Turtle

The Cayman Islands Currency Board was established in 1972 following the territory's administrative separation from Jamaica, and this series reflects the currency board model in its most straightforward form — no central bank, no monetary policy discretion, just a fixed 1:1.2 peg to the US dollar that has held without interruption since introduction. The KYD remains one of the highest-valued dollar-denominated currencies in the world, a function of that peg and the territory's offshore financial sector rather than any monetary tinkering.

De La Rue's B Series for the Caymans introduced upgraded security relative to the A Series, though by 1996 the thread and watermark combination was already considered a baseline rather than cutting-edge protection.