100 Pesos Baja California

Part of the long-running Mexican states series launched in 2003, this issue celebrates Baja California — the peninsula that remained under Spanish and later Mexican control despite sustained American filibuster attempts in the 1850s, most notoriously William Walker's short-lived 1853 Republic of Lower California. The series itself was a deliberate effort by the Casa de Moneda to produce silver bullion-content coins with genuine regional historical weight rather than generic commemorative fare.

KM#758 is one of 32 state issues in the program, each limited in mintage. The bimetallic construction, with a sterling silver centre, gave collectors a tangible material distinction from the base-metal circulation coinage.