Charts. Boulogne and approaches, France, north coast, from French survey in 1897 with corrections to 19-14; no. 4342. Scale naut. m.=2.7 in., natural scale 1:14,500.
Publication Title:
Boulogne and approaches, France, north coast, from French survey in 1897 with corrections to 19-14; no. 4342. Scale naut. m.=2.7 in., natural scale 1:14,500.
Display Title:
Charts. Boulogne and approaches, France, north coast, from French survey in 1897 with corrections to 19-14; no. 4342. Scale naut. m.=2.7 in., natural scale 1:14,500.
Corporate Agency Authors:
Hydrographic Office, Naval Operations Office, and Navy Department