Collection search - Plan of Dam and upper part of Oxford Snie Sectn. No. 2. Plan of Lock on Hurds Shallows Head of Barret's still water with a part of the Oxford Snie. Sectn. No. 2. John By, Lt. Colonel Roy'l. Engrs., Com'g. Rideau Canal 25th October 1827. AA 19. [cartographic material]

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