Watch List notes:

Sovereign 1839 Plain Edge Proof, Die Axis upright, this being the type originally in the 1839 Proof sets. S.3852, Wilson and Rasmussen 302, 7.69 grammes, UNC with some minor scuffs and hairlines and small rim nicks, nevertheless retaining much mint brilliance and eye appeal, an extremely rare issue and seldom offered, indeed we note we not offered this type since 2004. Many different weights have been recorded on this type, ranging from 7.69 grammes to 7.89 grammes

Estimate: 10000-12000 GBP