Above:Original package (front)
Click a thumbnail to see its larger version and description.
Four intersecting circles with fourfold symmetry.
- Inventor: Unknown
- Mechanism: Intersecting Circles
- Patents: Unknown
- Producer: Unknown
- Year: 1999
- Original Price: $0.00 USD
- Current Price: No Data
The instructions read as follows:
"Turn to match the right color fitting into once circle. Each circle has four portions that you can move.
"Simply turn the circle, then you can exchange the portion with another circle in order to have one circle with the same color.
"A more complicate skill is to play it with numbers showing. Turn and match the correct numbers indicated."
See the third image for a little diagram of the numbering system. I have no idea if the numbers are printed on the back of the puzzle or not.
Image 4 "Rotary Circle":
Courtesy, The Lilly Library, Indiana University, Bloomington, Indiana
The first year of production is unknown but Jerry Slocum acquired the sample shown in image 4 in 1999.
Paul Bernard Sananes was granted a patent for such a design in 1981 under the number FR2516805. I doubt that this patent was used fo this puzzle.
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Thank you to the following people for their assistance in helping collect the information on this page: Sandy.
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