Recherche dans la collection - Quebec Defences, Point Levis, Forts 2 and 3, Gorge gallery east. Plan No. VIII. R.G. Hamilton, Col. Commandg Royal Engineer, Quebec, 27th February 1872. E.F. Bourchier, Colonel, R.E., 11/70 March. V.G. Clayton, Capt. R.E. George Harris, Lieut. R.E. 5 March 1870. Copied C. Walkem, Draftsman, Decr 1871. [architectural drawing]