W. Mauke & Sons; Georg Koppmann; Hamburg. Sandthorhafen with the free port warehouses from the Hamburg portfolio. From the free port area; taken and edited by G. Koppmann & Comp; Staatliche Landesbildstelle Hamburg; collection on the history of photography; paper; collotype; image size: height: 22.1 cm; width: 30.7 cm; inscribed: verso and: Printed on the backing cardboard: Hamburg. Sandthorhafen with the free port warehouses; photograph by G. Koppmann & Comp; Hamburg. Photographed Hamburg; November 1888; architectural photography; city; city view (veduta); harbour; warehouse (harbour)