100 Dollars - Elizabeth II Red-crowned crane

The red-crowned crane issue is part of a wave of large-format silver wildlife coins that Cook Islands produced through the early 1990s in partnership with external minting houses, primarily targeting collector markets in Japan, Germany, and the United States rather than any domestic circulation. The 155-gram planchet puts this squarely in the five-troy-ounce category — a format that was commercially aggressive for its time and helped fund the Islands' government through licensing arrangements rather than conventional taxation or trade revenue.

The red-crowned crane held particular appeal for Japanese buyers, where the bird carries deep cultural weight in Hokkaido, home to the largest wild population. That market calculus was almost certainly deliberate.