Watch List notes:

George IV (1820-30), Half-Sovereign, 1828, bare head left, without extra tuft, rev. crowned garnished shield (Marsh 488; MCE 409; S.3804), light cabinet friction across cheek, otherwise lustrous, near mint state.
provenance
Spink Numismatic Circular, October 1977, no. 9882 - £350
Estimate: £800.00 - £1,000.00