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 Overzicht van de sluitgaten in de Oosterschelde met grondverdichting gerasterd en grondverbetering gearceerd.jpeg accession number en The individual creators of this map are unknown it was commissioned by the House of Representatives of the Netherlands Voor elke dwarsdoorsnede zijn tevens de toekomstige pijlers ingetekend