Soret type fluorescent eye-piece with adjusting knob

Made:
1872-1876 in United Kingdom
maker:
Charles Soret

Soret type fluorescent eye-piece with adjusting knob, blue tinted lens, unsigned, supplied by Geneva Association for the Construction of Scientific Instruments, Geneva, Switzerland, 1872-1876.

Details

Category:
Optics
Object Number:
1876-355
Materials:
glass
Measurements:
overall: 55 mm x 62 mm x 37 mm, .15kg
type:
eyepiece
credit:
Geneva Association for the Construction of Scientific Instruments