1 Centavo Pattern

Costa Rica's 1892 aluminium pattern centavo was struck as part of a broader monetary reform evaluation during a period when several Latin American states were experimenting with lightweight base-metal coinage for the lowest denominations. Aluminium was being seriously tested by multiple mints in the early 1890s as a practical alternative to copper — lighter to ship, cheaper to strike, resistant to the corrosion problems that plagued copper in tropical climates.

The reform never fully materialized as planned, leaving this piece as a trial that saw no circulation. Pattern survivorship from Costa Rican issues of this decade is extremely low.