Dokument
Admiralty Chart No 457 Portland Bight, Published 1963
Nautical chart of Portland Bight. Surveyed by Captain R.H. Connell, H.M. Surveying Ship Vidal, 1956; and Captain C.R.K. Roe, H.M. Surveying Ship Vidal, 1962. Not current - not to be used for navigation!
OldMapsOnline CommunityUnited Kingdom Hydrographic Office
1963