10 Pesos

Chile's 1851 coinage reform was driven by the need to align the national monetary system with the decimal structure introduced under the 1851 monetary law, which replaced the older real-based system. The 10 Peso denomination anchored the upper end of the new gold series, and the Casa de Moneda in Santiago produced it across three consecutive years before output effectively ceased — likely a reflection of limited gold bullion supply rather than any policy change.

KM#123 is scarce in any grade. The three-year window and modest surviving populations suggest these never circulated heavily, possibly absorbed into trade or hoarding almost immediately upon release.