Recherche dans la collection - Progress plan of the north & north west fronts, casemates &c of the new Citadel under execution at Cape Diamond, Quebec, 1826. S.C. Melhuish, Capn. Comg Rl Engr Quebec District. Commanding Royal Engineers Office, Quebec, 18 Nov. 1826 E.W. Durnford, Col., Comg Rl Engr Canada. [architectural drawing]

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