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- Progress Chart: Surveys in Northwestern Ontario - 31 December 1959.
Courtesy National Archives of Canada.
- Progress Statement #3 - 31 December 1959.
Courtesy National Archives of Canada.
- Preliminary Cost Estimates: Gap Filler Radar Stations - 18 December 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations - 18 December 1959.
Courtesy National Archives of Canada.
- Cost Estimates - 18 December 1959.
Courtesy National Archives of Canada.
- Gap Filler Program - 16 December 1959.
Courtesy National Archives of Canada.
- Progress Statement: Gap Filler Radar Stations Southern Ontario - 2 December 1959.
Courtesy National Archives of Canada.
- Progress Statement Appendix "A": Gap Filler Radar Stations in Southern Ontario - 2 December 1959.
Courtesy National Archives of Canada.
- Siting Instruction Plans: Gap Filler Radar Stations Eastern Quebec - 2 December 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Layout in Armco Building - 2 December 1959.
Courtesy National Archives of Canada.
- Sketch of Armco building - 2 December 1963.
Courtesy National Archives of Canada.
- Tower Detection System - 1 December 1959.
Courtesy National Archives of Canada.
- Progress Statement #2 - 30 November 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Radar Buildings Using Armco Products - 30 November 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations - 26 November 1959.
Courtesy National Archives of Canada.
- Delay in Completion of Drawings - 26 November 1959.
Courtesy National Archives of Canada.
- Field Survey Requirements - 19 November 1959.
Courtesy National Archives of Canada.
- Field Survey: Gap Filler Radar Stations Northwestern Ontario - 17 November 1959.
Courtesy National Archives of Canada.
- Progress Report No. 3: Maritime Gap Filler Stations - 15 November 1959.
Courtesy National Archives of Canada.
- Gap Filler Construction Programme - 13 November 1959.
Courtesy National Archives of Canada.
- Gap Filler Facilities - 13 November 1959.
Courtesy National Archives of Canada.
- Progress Chart: Surveys in Northwestern Ontario - 13 November 1959.
Courtesy National Archives of Canada.
- Evaluation and Approval of Siting Reports - 4 November 1959.
Courtesy National Archives of Canada.
- Revised Standard Specifications for Drawings - 29 October 1959.
Courtesy National Archives of Canada.
- Land Surveys - 27 October 1959.
Courtesy National Archives of Canada.
- Western Gap Fillers: Siting - 27 October 1959.
Courtesy National Archives of Canada.
- Standard Building Design: Gap Filler Radar Stations - 23 October 1959.
Courtesy National Archives of Canada.
- Design Analysis of Gap Filler Towers - 23 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations - 19 October 1959.
Courtesy National Archives of Canada.
- Field Surveys - 16 October 1959.
Courtesy National Archives of Canada.
- Western Plains Gap Filler Radar Stations - 16 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Stations: Engineering Services Western Quebec - 16 October 1959.
Courtesy National Archives of Canada.
- Progress Statement No. 1: Gap Filler Radar Stations Southern Ontario - 15 October 1959.
Courtesy National Archives of Canada.
- Progress Statement: Gap Filler Radar Stations Southern Ontario - 15 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Western Quebec - 15 October 1959.
Courtesy National Archives of Canada.
- Reconnaissance Reports: Gap Filler Radar Ststions Southern Ontario - 14 October 1959.
Courtesy National Archives of Canada.
- Transfer of Land - 9 October 1959.
Courtesy National Archives of Canada.
- Radar Gap Fillers: CADIN Extension - 9 October 1959.
Courtesy National Archives of Canada.
- Radar Gap Fillers: CADIN Extension - 8 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Northwestern Ontario - 8 October 1959.
Courtesy National Archives of Canada.
- Western Radar Gap Fillers - 7 October 1959.
Courtesy National Archives of Canada.
- Progress Report: Maritime Gap Filler Stations - 7 October 1959.
Courtesy National Archives of Canada.
- Radar Gap Fillers: CADIN Extension - 7 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations - 7 October 1959.
Courtesy National Archives of Canada.
- Site Approvals: Gap Filler Radar Stations Southern Ontario - 7 October 1959.
Courtesy National Archives of Canada.
- Standard Sheet Sizes: Gap Filler Radar Stations Northwestern Ontario - 7 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations - 6 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations Western Quebec - 5 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations Eastern Quebec - 5 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations Maritimes - 5 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations Southern Ontario - 5 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations Northeastern Ontario - 5 October 1959.
Courtesy National Archives of Canada.
- General Instructions: Gap Filler Radar Stations Northwestern Ontario - 5 October 1959.
Courtesy National Archives of Canada.
- General Instructions Appendix "A": Gap Filler Radar Stations - 5 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Survey in Western Canada - 2 October 1959.
Courtesy National Archives of Canada.
- Scaffolding for Tower - 2 October 1959.
Courtesy National Archives of Canada.
- Radar Gap Fillers: CADIN Extension - 2 October 1959.
Courtesy National Archives of Canada.
- Radar Gap Fillers: Task Organization - 2 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations - 2 October 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Stations - 1 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Northwestern Ontario - 1 October 1959.
Courtesy National Archives of Canada.
- Gap Filler Surveying in Western Canada - 30 September 1959.
Courtesy National Archives of Canada.
- Standard Sheet Sizes: Gap Filler Radar Stations Southern Ontario - 25 September 1959.
Courtesy National Archives of Canada.
- Preliminary Engineering Services - 24 September 1959.
Courtesy National Archives of Canada.
- Communications Facilities: Gap Filler Radar Stations Northwestern Ontario - 22 September 1959.
Courtesy National Archives of Canada.
- Field Surveys: Nova Scotia - 16 September 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Northwestern Ontario - 15 September 1959.
Courtesy National Archives of Canada.
- Statement of Services - 20 August 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 19 August 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Field Surveys - 11 August 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Western Quebec - 10 August 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 7 August 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 7 August 1959.
Courtesy National Archives of Canada.
- Chart with weight, width & depth details - 1 August 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 31 July 1959.
Courtesy National Archives of Canada.
- Preliminary Engineering Services: Gap Filler Radar Stations - 29 July 1959.
Courtesy National Archives of Canada.
- Contract for Performance of Work. Page 1 of 2 - 29 July 1959.
Courtesy National Archives of Canada.
- Contract for Performance of Work. Page 2 of 3 - 29 July 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Permission for Field Survey - 28 July 1959.
Courtesy National Archives of Canada.
- Field Study & Soil Investigations - 28 July 1959.
Courtesy National Archives of Canada.
- Field Survey Requirements: Gap Filler Radar Stations - 24 July 1959.
Courtesy National Archives of Canada.
- Field Study & Soil Investigation - 24 July 1959.
Courtesy National Archives of Canada.
- Site Listing & Detail - 24 July 1959.
Courtesy National Archives of Canada.
- Triangulation Stations & Trigonometric Levelling - 24 July 1959.
Courtesy National Archives of Canada.
- Triangulation Stations & Trigonometric Levelling - 22 July 1959.
Courtesy National Archives of Canada.
- Department of Lands and Forests - 22 July 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Building & Communications Requirements - 21 July 1959.
Courtesy National Archives of Canada.
- Statement of Services - 20 July 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 17 July 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 16 July 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 14 July 1959.
Courtesy National Archives of Canada.
- Proposed Gap Filler Radar Stations - 14 July 1959.
Courtesy National Archives of Canada.
- Field Study & Soil Investigation - 13 July 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Eastern Quebec - 13 July 1959.
Courtesy National Archives of Canada.
- Field Survey & Soil Investigations - 10 July 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations Ontario - 3 July 1959.
Courtesy National Archives of Canada.
- Construction & Engineering - 1 July 1959.
Courtesy National Archives of Canada.
- Estimate: Gap Filler Radar Sites Maritimes - 25 June 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 24 June 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 24 June 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 23 June 1959.
Courtesy National Archives of Canada.
- Construction of Gap Filler Radar Stations - 19 June 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar (FPS-18) Interference - 15 June 1959.
Courtesy National Archives of Canada.
- Construction & Engineering - 11 June 1959.
Courtesy National Archives of Canada.
- Sites for Gap Filler Radar Stations - 11 June 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations Ontario - 10 June 1959.
Courtesy National Archives of Canada.
- Forest Prevention Act - 10 June 1959.
Courtesy National Archives of Canada.
- Work Permit - 9 June 1959.
Courtesy National Archives of Canada.
- Field Survey & Soil Investigation - 19 May 1959.
Courtesy National Archives of Canada.
- MCL Doppler Building Type I - 11 May 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 30 April 1959.
Courtesy National Archives of Canada.
- Field Surveys: Gap Filler Radar Stations - 24 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations - 23 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Building & Tower Design Criteria - 21 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Station: Field Survey - 20 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Detail - 20 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Detail - 20 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Detail - 20 April 1959.
Courtesy National Archives of Canada.
- Gap Filler Radar Stations: Building & Tower Design Criteria - 7 April 1959.
Courtesy National Archives of Canada.
- Appendix "A" to Building & Tower Design Criteria - 7 April 1959.
Courtesy National Archives of Canada.
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