S3, B1, W1 ___W2 _T=540, A=0.
S3, B2, W1 __ ___W2 __ _T=?, A=?.
S3, B3, W1 __ __ T=360, A=?.
S3, B3, W2 __ _T=?, A=?.
S3, B4, W1 ___W2
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Other Toroidal Scherk-Collins Sculptures