Builder's architectural drawing self-taught : containing descriptions of drawing instruments and accessories, with rules for using them, and hints as to their care and management ... (1903)
Hodgson, Fred. T. (Frederick Thomas), 1836-1919 · Chicago : F.J. Drake & Co. · leaf 248
h-od of describing it.To properly dividethe diameter a, b, ofthe circle a b, c, d,into six equal parts, through the third of these,drawing the line c, d, e, f, g, at rightangles to a, b. From 3, with distance equal toone of the parts on a, b, set off the line a, c, tothe points 6 and 7, and through… … Fig. 225. 202 ARCHITECTURAL DRAWING SELF TAUGHT
Architectural drawing
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