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

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

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

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

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

Vintage Pickett Model N902-T Simplex Trig Slide Rule With Case

Vintage Pickett Simplex Trig Slide Rule Model 902-T Metal 10"

Vintage Pickett All Metal Slide Rule Model N902-T Simplex Trig w/ Case, Manuals