Vintage Pickett Simplex Trig Slide Rule Model 902-T Original Box, Instructions

PICKETT Model 902-T Simplex Trig Slide Rule w/ Original Case

Vintage Pickett Model 902T Simplex Trig Slide Rule Aluminum Leather Case

PICKETT 1949 Model 902-T Simplex Trig Slide Rule w/ Original Case

Pickett Slide Rule Model No. 902-T Simplex Trig W/ Case Vintage

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

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

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