ABRAHAM GOTTHELF KAESTNER (1719–1800), Professor of Mathematics and Physics, Director of the Observatory, Johann Heinrich Tischbein the Younger, 1770, oil on canvas, Art Collection of the University of Göttingen
ABRAHAM GOTTHELF KAESTNER (1719–1800), Professor of Mathematics and Physics, Director of the Observatory, Johann Heinrich Tischbein the Younger, 1770, oil on canvas, Art Collection of the University of Göttingen