Richters Anker-Steinbaukasten. Ihre Bedeutung und ihr erzeicherischer Wert.
Leipzig: Verlag der Leipziger Lehrmittel-Anstalt (Dr. Oskar Schneider, [n.d., 1888]. First edition of this catalogue advertising Richter’s Anchor Blocks. With thirty-five color plates elaborately illustrated with structures built from Anchor Stone blocks. Lacking backstrip, but binding is sound. Some edgewear and some light dustsoiling. Label of Berlin retailer Bernhard Keilich.....