Kleine Vorschule des Zeichnens für Knaben und Mädchen
A German drawing primer, Kleine Vorschule des Zeichnens, compiled by E. Müller and A. Rosmäßler and published in 1820 by Carl Friedrich Franz for boys and girls learning to draw. The single picture is a bare exercise plate, showing only a crossed diagonal line and a horizontal bar on a mottled ground, which suggests a designer might borrow the simple construction-line method of teaching drawing from the start.
