Hong Kong
British Colony. Victoria Proof 10 Cents 1863 PR66★ Cameo NGC, London mint, KM6.1, Prid-54A. Plain Edge. Easily among the finest survivors of this rare proof date, with bold frost on Victoria's portrait that creates a stunning cameo affect and alluring amber-gold tone on the obverse and reverse edges that frames the centers. Interestingly, close inspection appears to reveal a 3 beneath the 6 in the date, a die error that while microscopic on this small denomination, usually isn't found on carefully produced proof issues.
Estimate: 3000-4000 USD