$23

ENGINEERING INSTRUMENTS 10" SLIDE RULE W/BOOK & BOX, MADE IN USA, Model 10-BK

$10.11

Slide Rule Vintage Sterling brand No. 587 Closed Simplex 5” (1960s)

$8

Hubbell Wiring Division - Wiring Device Selector Bridgeport Ct. 1977 Perrygraf.

$10

Acu-Math No. 1500 12-1/2" Plastic Slide Rule with case

$42.86

Vintage 1900's Keuffel & Esser K E Polyphase N4053-3 Wood Slide Rule

$14.95

Vtg US ARMY Advertising Fahrenheit Celcius Conversion Scale Slide Rule

$45

Antique Keuffel & Esser Polyphase Duplex Slide Rule Manual Book Breckenridge

$12.99

Vintage The LOG LOG DUPLEX TRIG Slide Rule Manual #4080 Keuffel & Esser Co 1943

$75

Vintage Pickett 1962 Model N-500-ES Metal Slide Rule with Box and Papers NOS

$24.95

Keuffel & Esser K&E N4081-3 Log Log Duplex Decitrig Slide Rule Leather Case 1947

$170.99

Military Slide Rule Vintage US Case Artillery Aircraft B-24D E&G Load Adjuster

$37.4

Vintage Faber Castell 67/87 Rietz Slide Rule - With Brown Leather Case - Germany