Puerto Rico
Spanish Colonial copper Specimen Pattern 10 Centimos 1890 SP64 Red Brown PCGS, Barcelona mint, KM-Pn1. Choice Prooflike Uncirculated with much red colour remaining in the fields. A very popular pattern coin, rare and most desirable in this elite quality. For more historical background on this interesting pattern, please see Heritage's 4/2014 auction, lot 25694.
Estimate: 5000-6000 USD