Derksen, Essen, 1969 https://www.beethoven.de/de/media/view/5063171010199552/Ludwig+van+Beethoven+-+Gem%C3%A4lde+von+Josef+Hoffmann%2C+Fotografie+von+Elsa+M.+Derksen%2C+Essen%2C+1969?fromArchive=4890413836009472
Derksen, Essen, 1969
Derksen, Essen, 1969 Beethoven-Haus Bonn, B 1065