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"Tau is the new Pi" T-Shirt
Sale Price $38.70. Original Price $43.00.
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Tau is the new Pi Coffee Mug
Sale Price $25.61. Original Price $28.45.
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Tau is the new Pi
Sale Price $5.99. Original Price $6.65.
Tau is the new Pi Tie
Price$55.80
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Euler's Identity T-Shirt
Sale Price $40.50. Original Price $45.00.
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T-Rex Detector Mug
Sale Price $25.61. Original Price $28.45.