Charts. North Sea, Germany, Norder Piep to Vortrapp Tief, including Helgoland, from latest German surveys to 1930; chart 4862. Natural scale 1:100,000 at lat. 54° 30′.
Publication Title:
North Sea, Germany, Norder Piep to Vortrapp Tief, including Helgoland, from latest German surveys to 1930; chart 4862. Natural scale 1:100,000 at lat. 54° 30′.
Display Title:
Charts. North Sea, Germany, Norder Piep to Vortrapp Tief, including Helgoland, from latest German surveys to 1930; chart 4862. Natural scale 1:100,000 at lat. 54° 30′.
Corporate Agency Authors:
Hydrographic Office, Navigation Bureau, and Navy Department