Columbia subject headings:
Harvard subject headings:
Optical instruments--Germany--Augsburg--History--Sources.
Optics--Early works to 1800
Optics--Germany--History--Sources.
Optics--Germany--History.
Optics--History--Sources.
Wiesel, Johann, 1583-1662.
Princeton subject headings:
Optical instruments--Germany--Augsburg--History--17th century--Sources.