Eyepiece from optical device

Brass eyepiece. 12 holes on back plate behind lens, only 3 of which are open to light at current position.

Associated numbers:- A198366, B1063. (AW)

Details

Category:
Optics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A198366
Materials:
glass and brass (copper, zinc alloy)
type:
eyepiece