Gould, Lucius D., b. 1814. [from old catalog] · New York, A.J. Bicknell & co. · leaf 140
s, tangental tothe elliptical curves, all ready drawn. The bevels for the joints are shownat Fig. 3. To find the length of curve on the plan, for the wreath at the landing : AtFig. 4, from the point N, draw the common pitch indefinitely ; set up fromthe line N B, to the floor, the height of two… … H,
Stair building
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