Der Spitzbogen und die Grundlinien seines Masswerks : ein geometrischer Beitrag zur Ornamentistik des Mittelalters
Der Spitzbogen und die Grundlinien seines Masswerks is an 1854 German treatise by F. E. Reusch, published in Berlin by J. B. Müller for students of medieval ornament and architecture. Its plates show Gothic tracery drawn as clean geometric line work, with rose windows, fan vaults and pointed-arch window heads arranged in grids. A designer could take from them a systematic vocabulary of tracery patterns built from circles and arcs, useful for Gothic-inspired borders, panels and lettering frames.
