Mendelsohn, Erich Sketch for a reinforced concrete hall 1914 Tuschpinsel auf dünnem Transparentpapier, auf Karton montiert Brush and India ink on thin tracing paper, mounted on cardboard On the reverse of the cardboard there is affixed a photograph of a seven-branched candelabrum 23,4 x 22,5 cm 9 1/4 x 8 7/8 in. Minor margin imperfections, time staining Gift from the artist to Käte Freundlich, Berlin / Private collection, Hesse