Gould, Lucius D., b. 1814. [from old catalog] · New York, A.J. Bicknell & co. · leaf 60
A S, Fig. 1, as radius, describean arc, cutting the curve at H; for the direction of the straight wood, drawP R, equal to D B, Fig. 2, and H R equal to S B, Fig. 2; for the width ofthe mould, and the points for the pins to describe the outside and insidecurves, set off each way from D, half the… … J> JB J>itc/i-Board, h JA1*-
Stair building
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