Watch List notes:

(g) PF68 ULTRA CAMEO | Elizabeth II (1952-), Proof Sovereign, 1989, '500th Anniversary of the Sovereign', by Sindall, 7.98g, 12h (S.SC3), brilliant uncirculated, and especially harshly graded, in NGC holder, graded PF68 ULTRA CAMEO (5878631-005).

Estimate: £400 - £600