25 Dollars - Elizabeth II Black Jack

The "Black Jack" is one of several entries in Cook Islands' extended run of card-game-themed bullion issues produced during the early 2010s, a period when sovereign mints and their licensed partners aggressively courted the novelty collector market with oversized, high-relief silver rounds dressed in national coinage authority. Cook Islands, a self-governing territory in free association with New Zealand, has no meaningful domestic coin circulation — its collector issues are struck almost entirely for export, primarily to European and North American markets.

The five-troy-ounce format places this squarely in the promotional bullion category rather than numismatic coinage proper.