Collection search - Fortification surveys. Plan of Point Levis, Canada East, surveyed in 1864-5 by Lieut. H.S. Sitwell, Royal Engineers. Photo-zinco- graphed at the Ordnance Survey Office, Southampton, under the superintence of Captn H. Helsham Jones, R.E., Col. Sir H. James, R.E., F.R.S. &c Director. 1865. [cartographic material]

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