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 175
Fig. 140. the mortar joints in this are much wider at thetop than those of the portion /i/i, built in ringshalf a brick in thickness. The line of joints inboth these examples are radial, all being drawnfrom the center point. The most common—so-called arch—is what istermed gauged straight arches,…
Architectural drawing
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