Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 78
base of the middle leaf touching the transverseworking-lines between the sides.It will be seen that the penta-gon (Fig. 167) and the hexagon(Fig. 168) also are formed inthe same general manner, butthe proportion of the top ofthe trefoil varies from its sides. In drawing the circularrosette (Fig.… … Fig. 168. Fig. 169.
Mechanical drawing
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![An illustration from Catalogue des monuments et inscriptions de l'Égypte antique / publié sous les auspices de S.A. Abbas II Helmi par la direction générale du Service des antiquités [de l'Égypte] ; par J. de Morgan, U. Bouriant, G. Legrain, G. Jéquier, A. Barsanti (1894)](https://img.insideoutlibrary.com/img/200/ia-cataloguedesmonu21egyp-237-436.webp)