Gould, Lucius D., b. 1814. [from old catalog] · New York, A.J. Bicknell & co. · leaf 122
point J as centre, with P S Fig. 1, as radius, describean arc, cutting the curve at P. For the direction of the straight wood,draw J H, equal to S L, Fig. 2, and P H equal to N L, Fig. 2. For thewidth of the mould, and the points for the pins, to describe the outside andinside curves, set off each… … Tiji. 28
Stair building
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