25 Dollars - Elizabeth II White Swans

The White Swan series from Cook Islands belongs to a wave of Pacific island bullion and semi-numismatic issues that proliferated in the 2000s, with Cook Islands frequently licensing its monetary authority to foreign minting operations — in this case the coin was almost certainly produced under arrangement with a European or Australian mint rather than any domestic facility. Cook Islands itself has no minting infrastructure.

At 15.55 grams of .999 gold, this is a half-troy-ounce piece, a denomination that saw renewed commercial interest after the Perth Mint demonstrated strong collector demand for fractional gold in wildlife series during the same period.