The above is currently the only image for this item.
Four rings of ten balls each.
- Inventor: Unknown
- Mechanism: Moving Marbles (3D + 1x1xN)
- Patents: Unknown
- Producer: Unknown
- Year: Unknown
- Original Price: $0.00 USD
- Current Price: No Data
There exists another version (search for "Screwball" in the museum) with a middle layer that is one marble thick.
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Thank you to the following people for their assistance in helping collect the information on this page: Geert Hellings.
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