Mahon & Gibraltar besieged during the Seven Years' War

LE ROUGE, Georges-Louis.

Gibraltar Avec les nouveaux ouvrages faits depuis le dernier Siege. Les Lignes Espagnoles Levé nouvellement sur les Lieux. Plan du Port et Ville de Mahon, du Fort S.t Philippe et ses Fortifications.
Paris: 1756. 505 x 690mm.

Scarce broadsheet maps of two of Britain's Mediterranean possessions, published when both were under siege during the Seven Years War (1756-63).
At the top is Gibraltar, oreintated with north to the left, with a 40-point key listing features of both the British defences and the Spanish siege lines crossing the neck of the peninsula. To the right is an inset chart of the western Mediterranean.
Underneath is Mahon Harbour, then Britain's most important naval base outside the British Isles, orientated with north to the bottom right, with a 32-point key. At the mouth of the harbour is St Philip's Castle and Fort Marlborough, the latter being the only part of the British defences still extant.

MapForum.Com: Checklist of Charts of Mahon Harbour, 36, state 1 of 2.
Stock ID : 16377