EditorialHeinrich Hamann, Atelier J. Hamann, Johann Hinrich W. Hamann, 'Deutschland' - middle staircase, albumin paper, black and white positive process, picture size: height: 12,60 cm; width: 18,10 cm, Atelier, J. Hamann, Hamburg, Neust. Neustr. 65 - 66, speci...