| GMD | Nautical Chart |
| Language | Multilingual |
| Classification | HO_4994_1950 |
| Publisher | Washington D.C., The U.S. Navy Hydrographic Office, 1950 |
| Edition | New ed.(1949) |
| Subject | Nautical Chart--North Sea(Belguim and the Netherlands) |
| Series | H.O. Chart4994 |
| Description | Chart; 103 x 72 cm. Netherland Government Chart No. 203.British Admiralty Chart No. 325. Various Belgian charts. U.S. Hydrographic Office Publications. Miscellaneous data. |