Spheromancy- One form of prediction from spheres involves the random turning of a volvelle of movable concentrics, one bearing letters of the alphabet, the other numbers. The numbers give rise to random letters, which are used to spell out messages or oracles. 2004 Charles Walker /

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Photo credit: © Charles Walker Collection / Alamy / Afripics
License: Licensed
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Keywords: archival, archive, art, artistic, artwork, colour, divination, esoterica, form, format, historic, historical, history, image, involves, medium, movable, paranormal, prediction, random, spheres, spheromancy, spheromancy-, transparency, turning, volvelle