Eidotrope magic lantern slides

Made:
unknown
maker:
Unknown

Two large pulley-operated Eidotropes.

Eidotropes were a variation of a chromatrope which used counter-rotating discs of perforated metal, showing a swirling pattern of brilliant white dots on the screen. Coloured translucent sheets could be added to tint the display.

Details

Category:
Cinematography
Object Number:
1951-319
Materials:
wood (unidentified), mahogany (wood), metal (unknown), brass (copper, zinc alloy), lingum vitae, cotton thread and paper (fibre product)
Measurements:
whole: .51kg
type:
eidotrope
credit:
The National Media Museum, Bradford