The instrument consists of a flat rectangular glass plate with cut-off corners. The glass plate is set in a U-shaped wooden frame. The glass plate is backed by a similarly shaped piece of cardstock. The wooden frame is attached to a cylindrical brass handle.
Accession Number: 2012.ph.604
Primary Materials: Glass, wood, brass, paper
“26” is engraved on the right side of the wooden frame.
Dimensions (cm): Height=2.5, Width=25.5, Length=42.0
Intended to be used as a screen for mounted lenses, to be fitted onto an adjustable optical bench.
Condition: Good: minor scratches.
Date of Manufacture:
Acquired from the Physics department at the University of Toronto.
This instrument may be a component part of another instrument.