1 Crown - Elizabeth II The Battle of Ypres

Gibraltar has issued commemoratives tied to World War I anniversaries with considerable frequency, but the Third Battle of Ypres — Passchendaele, July to November 1917 — gives this particular piece a specific hook. The offensive cost the British and Commonwealth forces roughly 275,000 casualties over four months of fighting in the waterlogged Flemish mud, with territorial gains measured in yards.

The 2017 date aligns with the centenary.