I present "SharpEdges 201080420100", which cutting signature is
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201080420100.png [ 4.47 KiB | Viewed 1134 times ]
and which looks to me like an incomplete antiprism
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SharpEdges 201080420100 IncompleteAntiprism (0).JPG [ 93.76 KiB | Viewed 1134 times ]
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SharpEdges 201080420100 IncompleteAntiprism (3).JPG [ 93.95 KiB | Viewed 1134 times ]
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SharpEdges 201080420100 IncompleteAntiprism (5).JPG [ 93.56 KiB | Viewed 1134 times ]