Gottfried Keller überwindet den Pfiferjoggeli (GK defeating a fellow student nicknamed Pfiferjoggeli), pen and ink on paper, 25 x 32,5 cm.
Johann Conrad Werdmüller (1819-92)
between 1840 and 1842 <div style="display: none;">date QS:P,+1840-00-00T00:00:00Z/8,P1319,+1840-00-00T00:00:00Z/9,P1326,+1842-00-00T00:00:00Z/9</div>
Zentralbibliothek Zürich