Max Koner - Bildnis Carl von Siemens, 1898 (Heliogravüre), Max Koner
Carl von siemens. Heliogravure after a painting. Object Type: painting. Date: 1898. Medium: oil on canvas. Collection: Unidentified location.
Author: Max Koner (1854–1900)Source: https://commons.wikimedia.org/Loading...