Watch List notes:

(g) Australia, George V (1910-36), Sovereign, 1923-S, Sydney, bare head left, rev. St George and dragon, s on ground line (Marsh 283 {R4}; S.4003), lustrous, near extremely fine, rare.
In PCGS holder, graded MS62 - Certificate #35844350
Estimate: £10000 - £12000