Great Britain
George III Error Shilling 1820 MS64 NGC, Royal mint, KM666, S-3790. Broadstruck with Reverse Brockage Error. Exceptional deep toning, with hints of cobalt and violet. A dramatic and very rare mint mistake, with only a few known and this example quite possibly being the finest extant. A tremendous opportunity for the error specialist.Ex. Heritage 458, lot 51273.
Estimate: 1500-2000 USD