Slide Rules

KEUFFEL & ESSER Co. NY Vtg LARGE Teaching Slide Ruler For 85 INCHES LONG

$250.0

Old Keuffel & Esser K&E USA Polyphase Duplex #4168 Slide Rule 6" CELANESE CELCON

$39.99

Pickett N600-ES Slide Rule - Beautiful Condition! With Original Box And Manual!

$249.99

Keuffel & Esser 4080-5 20" Log Log Decitrig slide rule with leather case

$79.99

Various slide rules - Aristo, Faber Castell, Nestler and other

$95.0

Vintage ALLIS-CHALMERS Texrope Drive Selector Slide Rule

$8.0

Vintage Pickett Model N 3-T Power Log Exponential Slide Rule w/Leather Case

$85.0

Keuffel & Esser K&E MODEL ???? Slide Rule PAT .JUNE 1900 + 2 BOOKS

$0.99