10 Dollars - Elizabeth II Longest Reigning Monarch

On September 9, 2015, Elizabeth II surpassed Queen Victoria's record of 63 years, 216 days to become Britain's longest-reigning monarch — the date this coin was struck to mark. The Pobjoy Mint, a private Surrey-based operation with a long history of producing issues for smaller Commonwealth territories and dependent jurisdictions, struck this piece under license rather than on behalf of the Royal Mint, which handled the official British commemorative program separately.

KM#481 places this within the Isle of Man's numismatic catalog, a jurisdiction Pobjoy has supplied prolifically since the 1970s.