This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
KAARTEN SGD Overzichtskaart van de verplicht door de Koninklijke Paketvaart Maatschappij te bevaren verbindingen in NederlandschIndie.jpeg accession number en The individual creators of this map are unknown it was commissioned by the House of Representatives of the Netherlands Behoort bij de Memorie van Toelichting betreffende het