18 sheets of maps and drawings of defences for Amherstburg, originally enclosed in...

18 sheets of maps and drawings of defences for Amherstburg, originally enclosed in Lt Colonel Oldfield's letter of 24 December 1840 and referring to estimate of the same date. (3) 'Western Frontier of Upper Canada': map of area between Lake Huron and Lake Erie, showing Lake St Clair, the River St Clair and the River Detroit (the area is now partly in Ontario, Canada, and partly in Michigan, United States of America); soundings, channels, place names, roads, principal isolated buildings. Compass indicator. Scale: 5.33 inches to 16 miles [1:190,080]. Signed by P J Bainbrigge, Lt RE. (4) 'Plan of the Military Reserve at Amherstburg and Bois Blanc Island, with levels of the Ground levels and position of Proposed New Works'. Reference table to redoubt features. Scale: 1 inch to 100 yards. Compass indicator. (5) 'Proposed Work. Amherstburgh U.C.': plan. (6) 'Proposed Work at Amherstburgh Basement of Redoubt': plan. (7) Plan of upper floor of redoubt. (8-10) Three sheets of sections through the redoubt. (11) 'Bridge proposed to be erected over the Ditch of the New Work at Amherstburgh': plans and section. (12) 'Plan & Section of one of the Magazines for the new Work at Amherstburgh'. (13) 'Plan, Section & Elevation of one of the Stores proposed for the New Work at Amherstburgh'. (14) 'Proposed Guard-Houses for the new Work at Amherstburgh': plan and section. (15) 'Privies proposed to be built in the Enceinte of the New Fort at Amherstburgh': plan, elevation and section. (16) 'Drawbridge for Pentagonal Fort at Amherstburgh': plan and section. (17) 'Plan of Fort of Amherstburg in its present state Oct ^r 1840'. Reference table to buildings. Scale: 1 inch to 50 feet. (18) Longitudinal section through the Military Reserve, Amherstburg. (19) 'Section through West Face. North West Bastion'. (20) 'Proposed Tower Bois-blanc Island': plans and section. Scale: 1 inches to 10 feet. (4-6, 8-12, 14-16) Signed by A H Freeling, Lt.RE; (7, 13, 17-19) signed by Hampden C B Moody, Lt RE; (20) signed by J Oldfield, Lt Col CRE, 24 December 1840.