Watch List notes:

(g) Cook Islands, Elizabeth II, gold proof $50, 7.80g, 1995, bust of Elizabeth II right, rev. the Duchess of York and her two daughters, with date 1936 beneath (KM 276), proof uncirculated.
Issued by the Royal Mint.
Part of 'Lady of the Century' Series commemorating Queen Elizabeth, the Queen Mother.
Estimate: £200 - £240