Lacquered brass tubes, nickel plated brass circular table on black painted cast iron tripod base (total height 25 cm). Collimating tube with adjustable slit. Small tube holding a graduated scale and collimating lens. Adjustable telescope tube with draw tube focusing. Prism table with removable cover.
Unsigned, first half 20th century?

collection: Museum for the History of Sciences, Universiteit Gent, Belgium (inventory number: MW 99/3547)

Spectroscope - unsigned