Groth's universal apparatus - vertical polariscope
Groth's universal apparatus:- vertical polariscope with arrangements for parallel and convergent light
- Object Number:
- 1884-65/1
- type:
- polariscope
Groth's universal apparatus:- vertical polariscope with arrangements for parallel and convergent light, in two boxes, etc.
Groth's universal apparatus:- vertical polariscope with arrangements for parallel and convergent light