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Herrenportrait Jacob Kochs. Herrenportrait des Jacob Kochs mit Pferd und Windspiel Pastell auf Papier cm cm as dem Moskauer Nachlass Jacob Kochs Rittmeister des Zaren Alexander II kunstauktionenduesseldorf de Hargesheimer Gnther Kunstauktionen century anonymous PDold Images from Hargesheimer Gnther Kunstauktionen Jacob Kochs