50 Pesos 5 Condores - 'Casa de Moneda'

Felipe Herrera Lane, one of the signatories on the earlier variant of this note, left his position at the Banco Central in 1958 to become the founding president of the Inter-American Development Bank — a posting that effectively ended his tenure mid-series and necessitated the signature change to Luis Mackenna Shiell. The shift accounts for the two distinct signature combinations collectors encounter within this otherwise continuous issue.

The three signature variants also differ by the measured length of the printed surname — 22 mm versus 25 mm — a typographic inconsistency introduced at the Casa de Moneda that has since become the primary tool for distinguishing the subtypes.