Collection search - Quebec Citadel. Plans and sections shewing the method of staunching the covering of coal vaults. W.R. Ord, Lt. Col., Cg R Engr. Quebec, 28 May 1847. Quebec July 28th 1847. Geo. Blaiklock. P.P. Conworth. Drawn by T.A.L. Murray, Lieut. Royl Engrs. [architectural drawing]

Date modified: