Recherche dans la collection - Montreal. St. Helens Island. Plan of St. Helen's Island acquired by the Imperial Government (with Isle Ronde & Isle aux Fraiser) by deed of Exchange from the Hon. C.W. Grant & his Wife 8th April 1818 - vested in the Secretary of State for War under the Consolidated Statutes of Canada 22 Vict. Cap XXXVI and given over in charge of the Dominion Government by the Comg. Royal Engineer in Canada 28th November 1870... [architectural drawing]