Published after its demolition.
SARTINE, Antoine Raymond Jean Gualbert Gabriel de, comte d’Alby, 1729-1801, Lieutenant General of Police of Paris (1759-1774) during the reign of Louis XV, Secretary of State for the Navy (1774-1780) under King Louis XVI. Plan de la Ville et du Port de Louisbourg Levé [i.e. drawn] en 1756 Suivant l’original conservé au Dépôt Général des Cartes Plans et Journaux de la Marine. Pour le Service des Vaisseaux du Roi. Par Ordre de M. de Sartine, Conseiller d’État, Ministre et Secrétaire d’État au Département de la Marine. [Paris], 1779. Map size: 42.6 x 58.7 cm., platemark: 45 x 62 cm., overall 48 x 65 cm., hand-colouring that appears to be contemporary (and fresh), removed from an atlas, very good condition.
See Kershaw 936-938. This plan seems to correspond to Kershaw 938, who states: “In the bottom left corner, inside the neat-line is a legend. In the bottom left corner, to the right of the legend, is a Dépôt de la Marine stamp with  fleurs-de-lys. In the bottom left corner, outside neat-line, on its side, is “les deux Plans ensemble” [PRIX Trois Livres, whereas the two former entries give the price at Trente six sols (the same price), rendered by Kershaw as Trente fix fols]. Kershaw attributes this state as being published in 1780, but his map size is only 42.3 x 57.9 cm. (for all three states). All three states were published in the Neptune Americo-Septentrional … Receuil de Cartes Hydrographiques, and this third state appeared as well in the Neptune de l’Amérique Septentrionale, basically the same title as the former, but in French rather than in Latin. Somehow, it beats common sense why the French would still publish a plan of a fortification that was demolished some 20 years earlier so that their Navy could look for a landmark that was no longer in existence.