Watch List notes:

Elizabeth II, gold proof one hundred pounds, 2018, The Queen's Beasts series, The Black Bull of Clarence, head r., wearing tiara, rev. The Black Bull of Clarence, in case of issue, with certificate (S.QCG4), certified and graded by NGC as Proof 69 Ultra Cameo
Certificate number 256, one of only 500 issued.
(1750-2250 GBP)