25 Dollars - Elizabeth II Prague uprising

The Prague Uprising of May 1945 lasted barely four days but cost an estimated 1,700 Czech lives in the final spasm of fighting before Soviet forces arrived. Niue has become one of the more prolific issuers of commemorative bullion under licensing arrangements that generate revenue entirely through collector premiums — the island's own population is under 2,000.

At 15.56 g of .9999 gold, this is a half-troy-ounce piece.