Lehrbuch des Zeichenunterrichts an deutschen Schulen: wissenschaftlich entwickelt und methodisch begründet
A German drawing textbook by Fedor Flinzer, published in 1888 and drawn from the Heidelberg University Library collection, written for drawing instruction in German schools. Its plates are geometric line-and-tone exercises: a rosette inside a concentric ring, a stylised palmette scroll, four circular flower rosettes, and an interlaced hexagon pattern beside a dot grid. A designer could take from them the balance of petal shapes, the crisp black-and-white contrast of motif and ground, and the logic of radial and interlaced repeat.
