A new chart of the Coast of Africa from the Straits of Gibraltar to Cape Blanco, with Madeira & the Canary Islands; laid down chiefly from the observations of Monsr.: de Borda ... in 1777... and compared with those of several British and French navigators.
De Borda, Jean Charles.
London :  R. Sayer, 
1789.
Inset: A Survey of the Bay and Town of Magadore, 1786. 3 3/8 inches to a mile.