$10.78

Vintage Anaconda Brass Pipe and Copper Rube sizing Calculator

$19.97

Vintage Slide Rule Dietzgen 1767 P National and Lufkin Decimal Charts

$20

Vintage slide RULER Pickett 1959-Trig mathematical calculator trigonometry-NICE!

$11.99

Vintage Pickett Microline 140 Slide Rule and Faux Leather Case Plastic & MANUAL

$9.95

Vintage Acumath No. 400 Mannheim Slide Rule w/ Instructions and Case Made USA

$5.72

VTG Metric Reader Calculator Mid Century Slide Rule Tool

$9.95

Vintage - Calculator Slide Rule - American Beauty Spaghetti -1961 - Blue

$11.92

AIRSERCO AIR DUCT CALCULATOR NO:5125, SCALE, ROUND DUCT DIAMETER 5125🔔

$25

Pickett 800-ES Log Log Aluminum Slide Rule with Leather Case & belt loop

$2.66

Prime-Line 161935 Plastic/Steel Wardrobe Roller Assembly 15/16 Dia. x 1/4 L in.

$40

Slide rule KL-1 made in USSR

$136.5

Antique Keuffel & Esser Co. Slide Ruler In Original Leather Case. Model 4083-3.