1. NMC23410 Front elevation of block for Mssrs. Blackburn Bros., Metcalfe St,. Ottawa [1910]
2. NMC83009 Side elevation (to lane). [1910]
3. NMC83011 Longitudinal section. [1910]
4. NMC83012 Transverse section. Elevator front [1910]
5. NMC23409 Front elevation. Section of front wall through centre windows. 1910
6. NMC83010 Side elevation (to lane). 1910
7. NMC23407 Cross section. Elevation of central entrance looking toward restaurant. Section showing side of stair and elevator fronts 1910
8. NMC23405 Longitudinal section. Elevation of part of restaurant wall looking toward general entrance 1910
9. NMC82985 Basement floor plan. 1910
10. NMC82986 Ground floor plan. 1910
11. NMC82989 First floor plan. 1910
12. NMC82987 First floor plan. 1910
13. NMC82989 Second, third, fourth and fifth floors. 1910
14. NMC82990 Sixth floor. 1910
15. NMC82991 Seventh floor 1910
16. NMC82992 Part of seventh floor ceiling and roof plan 1910
17. NMC82993 Plan of pies for steel columns 1910
18. NMC82999 Plans for plumbing and heating in office building for Blackburn Bros. 1911
19. NMC83008 Ground floor 1911
20. NMC83000 First floor 1911
21. NMC83001 2d, 3d, 4th, 5th, 6th, 7th & 8th floors 1911
22. NMC83002 Attic space. 1911
23. NMC83005 Detail of marble work to main entrance. 1911
24. NMC83013 Plans of piers sections nos. 1 & 2. [1911]
25. NMC83017 Plans, section no. 2. 1911
26. NMC82998 Schedule of heights of columns. [1911]
27. NMC82994 "Plan shewing steel work of floor ""A""." [1911]
28. NMC82995 "Plan shewing steel work of floor ""B""." [1911]
29. NMC82996 "Plan of steelwork for floors ""C"", ""D"", ""E"", ""F"", and ""G""." [1911]
30. NMC82997 "Plan of steelwork, floor ""H"" Cor present roof plan." [1911]
31. NMC83014 """A"" floor or ground floor" [1911]
32. NMC83003 First floor plan. [1911]
33. NMC83019 Column schedule [1911]
34. NMC83018 Plan of steel floor A. [1911]
35. NMC83015 Plan of steel typical floors b, C, D, E, F, G, H, I, J, K. [1911]
36. NMC83016 Plan of steel floors C & L (for roof). [1911]
37. NMC83007 8th floor plan, Building no. 1 [1911]
38. NMC83004 9th floor plan, Building no. 1 [1915]
39. NMC83006 Roof plan, Building no. 1 [1915]