Page 12, Baltic and North Sea Seaports, map of Seaports of North and Baltic sea with insets of Dublin, Edinburg, Oslo (Christiania), Kaiser Wilhelm Kanal, Kieler Hafen, Liverpool, Ijmunden, Hoek v.Holland, Rotterdam, Amsterdam, Antwerps, Vlissingen, Dover, Calais, Thames estuary, Hamburg and lower Elbe
See Atlas