Watch List notes:

Elizabeth II (1952-2022), Proof Silver Piedfort "Kew Gardens" Fifty Pence, 2009, 250th Anniversary of the Foundation of the Royal Botanical Gardens, Kew, ELIZABETH. II D.G. REG. F.D FIFTY PENCE, crowned head right, rev. pagoda, plain edge, 12h (Spink H19), light frosted stain to the reverse field, otherwise brilliant, as struck, in original Royal Mint case of issue, with Certificate of Authenticity, no. 0300.

Estimate: £350 - £400