Combines two intersecting circles with one plunger.

• Inventor: Dmitry Andreev
• Mechanism: Intersecting plungers and circles
• Patents: Unknown
• Producer: Custom
• Year: 2019
• Original Price: $0.00 USD
• Current Price: No Data

This puzzle was named after the stellar system Foramen Eta Carinae (? Carinae, abbreviated to ? Car).
This puzzle is he first in which both intersecting circles and moving plungers are present at the same time. Some puzzle in the "Slide Rule"-series are similar but different as Foramen has two circles that intersect even when the plunger is never used.
Size: 110 x 275 mm
Weight: 175 grams

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