50 Dollars - Elizabeth II Buffalo

Cook Islands leaned heavily into the wildlife commemorative market in the late 1980s and early 1990s, issuing a string of silver pieces aimed squarely at the collector trade rather than circulation. The American bison had no geographic or historical connection to the Cook Islands — its appearance here is a straightforward licensing decision, timed to coincide with sustained collector demand for large-format silver wildlife issues following the success of the World Wildlife Fund series.

Few of these reached circulation. Most went directly into plastic holders at point of sale.