Atelier J. Hamann; Johann Hinrich W. Hamann; sibling portrait; albumin paper; black and white positive process; sheet size: height: 14.50 cm; width: 10.00 cm; dry stamp: recto on cardboard: J. Hamann; Hamburg; Neust. Neustr. 65 - 66; inscribed: verso on the cardboard: imprint: Atelier J. Hamann; Hamburg; Neust. Neustrasse 65-66; Speciality: Life-size portraits; The plates are kept for repeat orders and enlargements; portrait photography; studio photography/studio photography; double portrait; siblings; child; fashion; clothing; girl; boy; bust; en face; bust; en profile