Königliche Kunstakademie zu Düsseldorf, Grundriss der Dachbalkenlage, 1886 (LAV R BR 0004 01595 0045), 27 February 1886

Royal academy of arts in düsseldorf, floor plan of the roof beams, for today's report. Düsseldorf, february 27, 1886, (ottomar) moeller royal district building inspector (lav r br 0004 01595 0045). Date: 27 February 1886.