The theory of color in its relation to art and art-industry (1876)
Bezold, Wilhelm von, Koehler, S. R. (Sylvester Rosa), 1837-1900, Pickering, Edward C. (Edward Charles), 1846-1919 · Boston, L. Prang and Company · leaf 296
four straight lines,forming a triangular notch. On two sides of each square this notchindents the black figures, on the others the white. In Fig. 65 the sidesof the squares are formed of two lines of unequal length at right angles.The corners of the squares are at the points where four lines meet.… … Fig. 65.
Color · Decoration and ornament · Painting
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