Collection search - Canada. Sketch of the position of St. John's showing in yellow the proposed works. To accompany Lt. Col. Oldfield's letter to the Inspr General of Fortifications No 132, dated 12th August 1841. J. Oldfield, Lt. Colonel, Comg, Rl Engr in Canada. 12th August 1841. Copy J. Nightingale, 14th Sepr 1841. [cartographic material]