25 Pounds - Elizabeth II Rose Crown Shield Guinea

The "Rose Crown Guinea" branding resurrects the original Guinea denomination, which the Royal Mint introduced in 1663 — named for gold sourced from the Guinea coast of West Africa through the Royal African Company. Saint Helena's geographic and administrative ties to British colonial trade history make the issuer choice deliberate rather than incidental; the island served as a critical resupply and customs point on the East India Company's trade routes for nearly two centuries.

The .9999 fineness exceeds the original Guinea's 22-carat standard by a measurable margin.