20 Dollars - Elizabeth II

New Zealand's switch to polymer for the seventh series, launched in 2015 and phased into circulation through 2016, was driven primarily by durability data accumulated from Australia's own polymer rollout decades earlier — RBNZ could point to hard numbers on note lifespan rather than making an educated guess. The Canadian Bank Note Company has printed New Zealand currency since the 1980s, and the Ottawa facility handles the full seventh series run.

The see-through register on this note is among the more technically demanding features in the series — precise alignment of complementary elements on both sides of a polymer substrate requires tolerances that earlier paper-based security printing simply couldn't achieve.