Pickett Model N902-T Simplex Trig Slide Rule w/ Leather Case USA Vintage

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Pickett N902-T Simplex Trig All Metal Slide Rule Complete Box Instructions Case

Pickett All Metal Slide Rule Simplex Trig Model N902-T - White with Leather Case

Vintage Pickett Simplex 10in Trig Slide Rule Model N902-T & Case, w/original box

Vintage Pickett N902-T Metal Slide Rule Simplex Trig USA Black Leather Case Book

Pickett N902T Simplex Trig Slide Rule Metal 10" Instructions Box 1960 Vtg USA

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