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Hypnotic Crystal
Object/Artifact
-
Dr. Robert Greenspan's Medical History Museum
Name/Title
Hypnotic Crystal
Description
Elmer Knowles’ Radio Hypnotic Crystal created by traveling hypnotist Elmer Knowles in the latter part of the 19th century.
Created By
[email protected]
Create Date
October 19, 2026
Updated By
[email protected]
Update Date
October 19, 2026
