Cyclopedia of architecture, carpentry, and building; a general reference work .. (1912)
American School (Lansing, Ill.) · Chicago, American school of correspondence · leaf 361
Fig. 52. Plan of Bottom Partof BuUnose Stair Fig. 53. Vertical Section throughBottom Part of BuUnose Stair. Only the central carriage timbers are shown in Fig. 54; but in astair of this width, there ought to be two other timbers, not so heavy,perhaps, as the central one, yet strong enough to be of…
Architecture · Building
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