Antique map of the tidal currents of the English Channel

This antique nautical chart depicting the tidal currents of the English Channel was produced by the French Service Hydrographique de la Marine. It includes specific maps of the approaches to Le Havre, the harbors of Cherbourg and Brest, and the Channel Islands. It dates from the mid-20th century and measures 74.5x53cm.

Condition:

Good condition. Please note, my maps are old and not always in perfect condition!