50 Gulden Kopergeld

De Javasche Bank was established in Batavia in 1828 under Dutch colonial authority, and its earliest note issues — including this 50 Gulden Kopergeld — were intended to address a chronic shortage of copper coinage in the Dutch East Indies. The term "Kopergeld" directly links the note's face value to the copper currency it was designed to substitute, a monetary workaround common in colonial economies where metal supply was perpetually unreliable.

Notes from the early 1830s issues are among the rarest survivals from this bank's history. The combination of tropical climate, high humidity, and the eventual consolidation of Dutch colonial finance meant that most early Javasche Bank paper was either destroyed in circulation or deliberately withdrawn. P#21 survivors are genuinely exceptional.