25 Pounds - Elizabeth II Golden Wedding Anniversary

Alderney's commemorative gold program in the 1990s operated under a Privy Council arrangement allowing the island to issue coins under its own name despite having no independent monetary authority — the pieces are legal tender on the island in a purely nominal sense, with face values set far below melt from the outset. This 1997 issue marks the Queen and Prince Philip's fiftieth anniversary, the first British royal couple to reach that milestone while on the throne.

The KM#23b designation distinguishes this gold striking from companion issues in silver and base metal within the same series.