One of the lesser known version of Douglas' Engels Puzzlers.

• Inventor: Douglas A. Engel
• Mechanism: Intersecting circles
• Patents: US4415158
• Producer: General Symmetrics Inc.
• Year: 1982
• Original Price: $0.00 USD
• Current Price: No Data

This came with a card attached from General Symetrics Inc. (Puzzles, Games, Diversions).
Also known as Jentek#2.

Image 2:
Courtesy, The Lilly Library, Indiana University, Bloomington, Indiana
The first year of production is unknown but Jerry Slocum acquired the sample shown in image 2 in 1982.

Thank you to the following people for their assistance in helping collect the information on this page: Oscar Rosen.

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