25 Gulden

Obverse description	Brown. The note is dominated by an ornate guilloche border with decorative corner medallions and the denomination numeral '25' at upper left and lower right. The bank name 'DE JAVASCHE BANK' and the payable clause 'BETAALT AAN TOONDER' are set in bold letterpress above the large denomination legend 'VIJF EN TWINTIG GULDEN'. An oval intaglio portrait vignette of Jan Pieterszoon Coen, dressed in period costume with a distinctive ruffled collar, is positioned at right, with two manuscript signatures below — those of the Secretary and the President.
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Protection type	Watermark
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Comments	De Javasche Bank, the colonial central bank of the Dutch East Indies, issued this series during a period when the gulden's convertibility was still tied to the gold standard — the Netherlands held that peg until 1936, meaning these notes circulated under a relatively stable monetary regime by the standards of the region and era. Enschedé in Haarlem had printed colonial currency for Dutch possessions for generations; their intaglio work on this series is characteristically dense and precise. The watermark is the primary anti-counterfeiting measure — no metallic thread, no complex overprint. Simple by later standards, but sufficient for the period.