Watch List notes:

Elizabeth II, Piedfort Proof Crown (Five Pounds), 2011, in platinum, 'Wedding of the Duke and Duchess of Cambridge', third portrait right, modified legend, rev. WILLIAM AND CATHERINE - 29 APRIL 2011, their heads facing, by Mark Richards, edge plain, 94.41g (S.L22), some cloudiness in recesses, otherwise brilliant uncirculated, very rare, only 133 issued.

Estimate: £2,500 - £3,500