Peeking at the enemy. Eighteenth century 'spy' plan reveals VOC military intelligence

Housing the largest Dutch East India Company (VOC) and Dutch West India Company (WIC) archive, the National Archives of the Netherlands also preserves many hand drawn maps, plans and topographical views of the Dutch overseas settlements. Between 2005 and 2012 these were reproduced in the monumental series of the Comprehensive Atlas of the VOC and WIC. Nevertheless, a hitherto unknown plan was recently uncovered from obscurity.