Oost Zee, 165617th century, 5–6 decade, BalticSeaChart description Oost Zee Amsterdam, 55.5 x 63 cm. from his “Atlas of werelts- waterdeel en des selfs zee-custen.” Year 1656 Author Jacob Aertsz Colom Sources National Maritime Museum, Greenwich: https://www.rmg.co.uk/collections/objects