Kirchhoff Bunsen-type spectroscope
Lacquered brass tubes, glass prism, cast iron circular table (diameter 14.8 cm) on black painted cast iron tripod base (total height 22 cm). Collimating tube with adjustable slit. Small tube holding a graduated scale and collimating lens. Telescope tube with draw tube focusing.
Unsigned, but with the initials "UC" on the telescope tube. First half 20th century?