Several pieces of a Square-1 were exchanged and the result was modified into a triangular prism.

• Inventor: Mitchell Johnson
• Mechanism: Square-1 (3 layers)
• Patents: Unknown
• Producer: Custom
• Year: 2019
• Original Price: $0.00 USD
• Current Price: No Data

This was made from a remade Tri-1 (please refer to the separate entry) that was truncated into the shape of a true triangular prism.
It has six 60°-segments and twelve 30°-segments.

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