Heinrich Hamann; Atelier J. Hamann; Johann Hinrich W. Hamann; Aus dem Hauptkontor bei der GEG; silver gelatin paper; black and white positive process; sheet size: height: 24.20 cm; width: 30.70 cm; inscribed and dated: verso: handwritten in lead: no. 19; Hamburg; ca. 1910; From the main office; at the GEG; studio for photography of all kinds awarded Hamburg 1898; J. Hamann; Hamburg 36; Valentinskamp; 41; Copyright by; All film and reproduction; rights reserved; handwritten in lead: inventory no; technology; repro 58826; reporting photography; office (administration finance); study/library