Box of Prisms


Accession Number: 2017.psy.191


This object is a wooden box divided into three felt-lined sections. It contains a number of unsorted glass prisms, pieces, and other optical pieces. One set of flat glass pieces is contained in a paper envelope.

Primary Materials: Wood, Glass, Metal, Paper


On the paper envelope, type and handwritten: “VISUAL TEST APPARATUS”
“Fixation plate. & Diaphragms”
“Research Instrument Laboratories”

Dimensions (cm): Box: 26.6cm x 17.8cm x 7.9cm

Function: Visual/optical testing.


Fair. The box has some small marks and scratches, as well as three small holes on the front, as if for small nails. The loose prisms and other materials show signs of use in the form scratches, nicks and wear in non-glass surfaces. The paper envelope is somewhat tattered. The cardboard on the surface of the glass pieces in the envelope is dirty and torn.

Manufacturer: Various

Provenance: Department of Psychology