Rudolph Dührkoop...

Rudolph Dührkoop, Peter Behrens, paper, heliogravure, image size: height: 21,50 cm; width: 16,00 cm, inscribed and dated: recto u. on the Japan paper: recto u. on the Japan paper, handwritten in lead R. DÜHRKOOP; handwritten in lead verso at the bottom of the inside of the passepartouts: catalog no, photographer, place, title, technique, on verso and handwritten in blue ballpoint pen: reproduced: PL 31530, stamp: verso and on the cardboard: dry stamp: recto and left: Dührkoop, 1908, label: verso and on the cardboard: in typescript, 1) on gray cardboard: Rudolph Dührkoop, Hamburg, Peter Behrens, 1908 [ph corrected by hand in lead by f]; 2) on yellow and white cardboard: RUDOLF DÜHRKOOP, Peter Behrens, architect, Bromsilber, 1908, Inv. No. F Juhl 22/10; 3) on white paper: FROM STONES TO STONE, 70 selected photographs, Fritz Kempe on his 70th birthday, Oct. 21 to Nov. 18, 1979, portrait photography, half-length portrait, man, architect, artist, historical person, Peter Behrens. (Photo by: Sepia Times/Universal Images Group via Getty Images)