Gould, Lucius D., b. 1814. [from old catalog] · New York, A.J. Bicknell & co. · leaf 128
l to CN, Fig. 1; from the point B as centre, with E G, Fig. 2, as radius, describearcs, cutting the curve, at S and R; join B S and B R, the direction andlength required. For the width of the mould, and the points for the pins,to describe the outside and inside curves, set off each way from D half…
Stair building
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