equalparts, one of which (as b d) measured uponthe point of intersection b, where the perpen-dicular line cuts the base, will give the pointfrom whence the lines d a are to be drawn tothe apex a; then with the width dd (beingtwice B D, or one-third of the base c c), mea-sure off on D A a succession… … THE DECORATOR S ASSISTANT. 29
Design · Decoration and ornament · Art
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