50 Gulden

De Surinaamsche Bank was established in 1865 with an exclusive right of issue for the Dutch colony, making notes from the early portion of this series among the first it ever printed. Enschedé in Haarlem had long handled Dutch colonial currency work, and the relationship was essentially institutional — there was no competitive tendering.

The 1856 opening date in the catalog range predates the bank's own founding, which suggests either provisional or predecessor-institution dating conventions at play in the Pick attribution. Worth verifying against the specific date on any individual example before drawing conclusions about issue authority.