Plan du Port de Boulogne et ses environs A coastal chart showing the English Channel with the port of Boulogne. Drawn by Ploix and Bouillet and published by the Depot des Cartes et Plans de la Marine, Paris 1879. The August 1895 edition. On stiff good quality paper size 105 by 74 cm. Scale 1:14,400 or 5 inches to the nautical mile. Heights shown by hachuring or shading. Lights and lighthouses hand-coloured. Has had one central fold. VG condition.