Watch List notes:

Sovereign 1911 Proof S.3996 in an NGC holder and graded PF67 Cameo, at the time of writing NGC have graded 276 1911 Proof Sovereigns, only one has graded higher, PCGS have also only graded one at Proof 67 Deep Cameo with none in a numerical high grade

Estimate: 3000-4000 GBP