Collection search - Quebec, C.E. Elevation of ravelin gates, Citadel. To accompany A.E. 1859-60 item 9 fortifications. Approved item 8 A.E. 1859-60. Fortifications, Wm C. Hadden Col. C.R.E., C.E. 2nd Sepr. 1858. Correct J.C., C.W. 17-5-59. Wm C., C.W. 1-8-58. [architectural drawing]