Watch List notes:

(g) Vanuatu, gold proof 100-Vatu, 7.78g, 1997, Arms of Vanuatu, rev. the Queen Mother at the birth of Prince William, with date 1982 beneath, proof uncirculated.
Issued by the Royal Mint.
Part of 'Lady of the Century' Series commemorating Queen Elizabeth, the Queen Mother.
Estimate: £200 - £240