Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 692
Fig. 1661. Fig. 1662. rical and Flowing; the former consisting of geometrical figures, as circles,trefoils, quatrefoils, curvilinear triangles, lozenges, etc.; while in flowing tracerythese figures, though still existing, are gracefully blended together in one de-sign. Fig. 1661 represents an…
Mechanical drawing
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