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Visual Tracking Magnifier (VTM); optical device used to help dyslexia sufferers by blocking textual 'pattern glare'

1999

O.M. Mount Photomicro Adapter by Olympus, 1983

1983

Microscope Adapter P by Olympus, 1983

1983

Spiral Paper Disc Machine

1901
Wooden handle, brass disc with 6 circular apertures. A colour rotator according to attached label. Associated numbers:- A204328, B1053. (Adrian Whicher 2017-04-28)

Optical device; colour rotator

Rotating optical device with lenses, some missing from their holders. Associated numbers:- A191084, B1466, SCI 31/69, Dept 1, 4c-1. (AW)

Rotating optical device with lenses

Optical device. Metal surround with eyepiece one end, ground glass screen opposite end. 165109 on attached label (no A). (AW)

Unidentified optical device part