Die Farbenwelt : ein neuer Versuch zur Erklärung der Entstehung und der Natur der Farben, nebst einer praktischen Anleitung zur Auffindung gesetzmässiger harmonischer Farbenverbindungen
A German colour theory treatise by Max Schasler, published in Berlin by Habel in 1883, explaining the origin and nature of colours and offering a practical method for finding harmonious colour combinations. The page is a set of numbered diagrams showing colour wheels, triangles and star-shaped arrangements with German labels and annotations. A designer could take from it the geometric way colour relationships were mapped in the nineteenth century, using triangles, circles and radial divisions to organise hues.
