Watch List notes:

George IV (1820-30), Bronzed Proof Penny, 1826, laureate head left, rev. Britannia seated right, plain saltire (Peck 1423; S.3823), a superb specimen, near FDC.
provenance
Spink Numismatic Circular, January 1977, no. 610 - £100
Estimate: £400.00 - £600.00