100 Pounds - Charles III The Lion and The Eagle; Gold Proof

The pairing of lion and eagle in British royal iconography has deep heraldic roots, but this issue belongs to a deliberate Royal Mint strategy launched under Charles III to position high-karat gold proofs as collectible sovereign-tier pieces distinct from the standard Britannia and Sovereign lines. The .9999 fineness is notable — finer than the long-established .9167 gold Sovereign — a specification choice that aligns these coins more closely with Canadian Maple Leaf and Australian Kangaroo bullion standards while retaining the full proof treatment.

Charles III's reign began in September 2022, making 2026 issues still early in the numismatic record of his coinage portrait series.