Family Portrait, c. 1910

UNDATED – Portrait of a family with a boy in the living room of their house. © Mark Zanzig/zanzig.com/Photo: Gorber … More

Maid at the Window, c. 1910

UNDATED – Portrait of a maid standing at the window in a light-flooded living room. © Mark Zanzig/zanzig.com/Photo: Gorber Family … More

UNDATED – Studio portrait of two young women. © by Mark Zanzig/zanzig.com/Photo: Alb. Giesler

1895 – Studio portrait of a young lady. © by Mark Zanzig/zanzig.com/Photo: Alb. Giesler

1896 – View across Oberstein (Nahe) in Germany. Scan © Mark Zanzig/zanzig.com/Photo: H. Lüddecke

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

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