Arbeitschule: Das Pappen (Modelliren): für Kinder von 5 bis 14 Jahren
Arbeitschule: Das Pappen (Modelliren) is a German school handbook for children aged 5 to 14, compiled by Friedrich Seidel and Franz Schmidt and published in 1866 in the Heidelberg University Library collection. The pictures are blue-printed cardboard nets for folding models such as boxes, a chair and a cube grid, with dashed fold lines on cream paper, which suggests flat pattern layouts a designer could adapt for packaging or paper toys.
