Pasco, Peru, 4 reales, 1857, monogram Z inside O, encapsulated NGC AU 58. KM-151.10. 12.6 grams. Bold and lustrous with pervasive golden toning morphing to blueish on high points, popular issue from a short-lived mint, this specimen tied with two others for second finest known in NGC census. NGC #2713826-002. Acquired through Bill Christensen in 1973 and reportedly from an Eastern European bank collection known to have contained specimens from the Fonrobert collection. (Estimate: $400 - 600)