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 74
Fig. 30. Fig. 31. thickness of lines, and the pen should alwaysstand vertically over the work, as shown in Fig.30. When a number of circles drawn from acommon center is necessary, as shown in Fig. 31,be sure to draw the outside, or the one having
Architectural drawing
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