Hermann Lichtenberger, Idar-Oberstein, Germany, c. 1900

An undated cabinet photo shows Hermann Lichtenberger, in a photo studio in Idar-Oberstein, Germany. Photo: Alexander Schmidt

Christian Nagel Family, Birkenfeld, Germany, c. 1897

An undated cabinet photo shows Christian Nagel (right) and his family in Birkenfeld, Germany. Scan © Mark Zanzig/zanzig.com

An undated cabinet photo shows Philipp Lichtenberger (front row, 2nd from left) and his family in a photo studio in … More

UNDATED – A portrait of Kurt Pahlke in Germany. Photo: Otto Stiegler, Itzehoe

UNDATED – A portrait of Wilhelmine Rave of Süderauerriep near Krempe in Germany. Photo: Hans Martens, Krempe

An undated CdV photo shows Emma Nagel, in a photo studio in Dudweiler, Germany. Photo: Atelier Hugo Mertens

An undated cabinet photo shows a young woman in a photo studio in Weissenfels, Germany. Photo: Atelier F.W. Reichert

1880 – Side view, section drawing and floor plan of the steamer ‘Frisia’ which served from August 1872 to 1885 … More

An undated cabinet photo shows Otto Davieds, a student at the Marutendorf farm, in a photo studio in Kiel, Germany. … More

C. 1872 – An undated Carte de Visite (CdV) shows the portrait of a lady in a photo studio in … More