Map of the redoubt Purmerend

Title Leupe: Plan van de Redoute Purmerent.

As part of the 1733 plan to improve the defenses of Surinam, Fort Nieuw Amsterdam would be supported by two auxiliary forts on the opposite banks at the mouths of the Surinam and the Commewijne. The first, the earthen redoubt Purmerend on the western bank of the Surinam, was commenced in 1748 to a design by Ensign Andries Lodewijk (Andreas Ludovicus) Calvi, who held the position of Acting-Inspector of Fortifications between 1744 and 1754. Based on the writing and drawing style, this map does not appear to have been made by Calvi, but rather seem to be a modification of his original design. Both groundplans add a star-shaped wall to the basic triangle-shaped redoubts to increase the defence at the bank of the river. For the design above this wall has been retreated slightly more landwards.

Scale-bar of 40 Rods = 165 “strepen”.