Arequipa, Peru, 1/4 real, 1839, encapsulated NGC MS 63. KM-143.2. Muted luster with speckled-gray toning, no wear or marks, nice strike, rare as one of just five Mint State examples and tied with two others for finest known in NGC census (the others being the Lissner and Whittier specimens). NGC #3735789-002. (Estimate: $1250 - 2000)