Rudolph D黨rkoop; Senator Dr. C. A. Schroeder from the portfolio Hamburgische M鋘ner und Frauen am Anfang des XX. Century; Staatliche Landesbildstelle Hamburg; Collection on the History of Photography; paper; heliogravure; picture size: height: 22;40 cm; width: 16;00 cm; signed: recto below the picture: Exposed signature of the sitter; inscribed: recto: engraved on printing plate; below the picture: photograph and photogravure R. D黨rkoop; Hamburg; top left above the picture 4th; top right in the corner noted in lead:15; stamp: recto: handwritten addition: Inv.No. and reference to repro; portrait photography; portrait; half profile (three-quarter view); politician; part of the portfolio Hamburg Men and Women at the Beginning of the XXth Century - Camera Portraits - Photographed; etched in copper and printed by Rudolph D黨rkoop Hamburg 1905.