Spain
Alfonso XII Proof 10 Centimos 1877-OM PR67 Brown PCGS, Barcelona mint, KM674. Superb Gem Proof with highly reflective and essentially flawless surfaces, as expected for this rare technical designation. Despite the indication on the insert, significant amounts of red can be seen on the reverse while rich blue-green and magenta toning predominate on the obverse. an impressive coin, very rare and most attractive in this select quality.
Estimate: 1500-2000 USD