1768, Guatemala, Charles III. Rare Silver 8 Reales Coin. Spanish Pillar Dollar! Mint Year: 1768 References: KM-27.1. R! Mint Place: Guatemala City (G) Assayer: Pedro Sanchez de Guzman (P) Denomination: 8 Reales “Pillar Dollar” Material: Silver (.917) Weight: 26.73gm Diameter: 41mm Obverse: Spanish shield witha arms of Castile and León, flanked by assayer letter (P) and denomination numeral ( ...