NY Canada 1758 Crowns Point Albany 2 rare maps Louisbourg harbor Cape BretonThe Gentleman's and London Magazine, for August, 1758. Dublin, John Exshaw. pp. 54. Periodical, extracted from bound volume, complete as issued. Both maps by anonymous engravers. Scarce pair of mid 18th century maps relating to this infamous military campaign attack on Fort Ticonderoga near Lake Champlain on the edge of Vermont and Lake George in New York. Maps still within the periodical as issued, Canada map defective as seen (lacking a small sliver