Title: Uhren und wissenschaftliche Instrumente der Familie Hager /
Authors: Oestmann, Günther, 1959-; Herzog August Bibliothek.
Publisher: Städtisches Museum Braunschweig,
Year: 1999
Subjects: Hager family.; Clocks and watches History Exhibitions.; Clocks and watches Germany History Exhibitions.; Astronomical instruments History Exhibitions.; Astronomical instruments Germany History Exhibitions.