Karl Wilhelm Diefenbach (Hadamar 1851-1913 Capri)
Portrait of Fidus (Hugo Höppener),
c. 1888,
vintage photo mounted on card,
stamped signature lower left: "CW Dfnbch."
Humanitas commune, Höllriegelskreuth, stamp on verso
The Daulton Collection
provenance: Fidus Nachlass (Estate of Hugo Höppener, Fidus)
