Arbeitschule: Geradlinige Figuren: Für Kinder von 5 bis 9 Jahren
A German school handbook of 1868 by Friedrich Seidel and Franz Schmidt, issued as a teaching aid for children aged five to nine in the Arbeitschule method of making straight-line figures. The plates show black grid backgrounds with white-line geometric drawings: symmetrical star and rosette forms, stepped gables, a church-like facade, and interlaced patterns built from ruled lines. A designer could draw on the repeating radial symmetry and the grid-based construction of these compact geometric motifs.
