Pickett Model N902 -T Simplex Trig Slide Rule

Pickett Slide Rule Model N902-ES Simplex Trigonometry with Case - Excellent!

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

Pickett slide rule model N902-ES SIMPLEX TRIG with sleeve

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

VTG Pickett Model #N902-T Simplex Trig Trigonometry All Metal Slide Rule w/Case

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

Vintage Pickett Model N902-T Simplex Trig Slide Rule ~1959