HEINRICH AUGUST RUDOLF GRISEBACH (1814–1879), Professor of Botany, date unknown (2nd half of the 19th century), Carte de Visite, State and University Library of Göttingen, Voit Collection
HEINRICH AUGUST RUDOLF GRISEBACH (1814–1879), Professor of Botany, date unknown (2nd half of the 19th century), Carte de Visite, State and University Library of Göttingen, Voit Collection