Great Britain
George IV Crown 1821 MS65 PCGS, Royal mint, KM680.1. "Secundo" edge. Having the usual bold strike, but also wonderful surfaces, reflective luster and delightful iridescent rainbow toning. While higher grade specimens of this date do exist, it would be hard to surpass the eye-appeal of this coin - a wonderful crown!
Estimate: 5000-6000 USD