Radio Hypnotic Crystal device, c.1950, by Knowles
- Made:
- 1940-1960
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Science Museum Group
© The Board of Trustees of the Science Museum
Radio Hypnotic Crystal device, c.1950, by Knowles
Details
- Category:
- Therapeutics
- Object Number:
- 1982-1450
- Materials:
- container, metal and contents, sand, ? material
- type:
- hypnotisers
- credit:
- Natural History Museum
