Engraved chart on vellum double sheet, 91 x 62 cm, engraved by Cornelis, written by Er. Dumas Vorzet, drawn in 1876 by E. Mouchez, publie au Depot des Cartes et Plans de la Marine, 1878, corrected in 1892 by 3 small rectangles tipped-in and measuring approximately 4 x 3.5 cm, small smudge lower right, otherwise in very good condition.