- Subject
- Optical instruments
- Item type
- Object
- Makers
- Carston D. Ahrens
- Provenance
- Transferred from the Department of Geology & Mineralogy, Oxford, in 1961. The original receipted invoice is made out to G. H. Madan, which is presumed to be an error for the chemist and physicist H. G. Madan, fellow of Queen's College, Oxford, and science master at Eton.
- Object type
- Prism
- Dimensions
- Height: 157mm Width: 65mm
- Inventory No
- 24182
- Accession Number
- 1961-138/33a
Description
Nicol prism in copper alloy cylinder, both ends have a screw thread collar which holds a glass disc. The wooden rectangular case has a hinged lid, metal fittings and is lined with red velvet.


