$135.32

A Stanley Circular Protractor stamped Stanley, Great Turnstile, Holborn, London.

$20

Oxford Instruments The Business of Science Ask Me Nylon Small Tote Bag FREE S/H

$54.87

TECHNICAL DRAFTING DRAWING SET RICHTER & CO 1836 CASED GERMANY VINTAGE L/VII P

$23.36

1973 Berwind Corp Bindicator Level Control Engineering Brochures Port Huron MI

$25.7

Vintage BRL Slide Rule Academy 300 in slipcase & Instruction Leaflet

$4.95

1920's Corresp. School Lesson Booklets on Electricity

$55

International Metric System Industrial Poster Central Instrument ~1960s 28x42.5"

$54.11

Vintage Avometer Model 40 Universal - Black - Unit Only * Untested *

$100

Schottky Publications from Texas Instruments 1970s

$74.96

National Schools Scientific Kit, Heath Company Comp-Trainer #2252 Vintage, Rare

$33.82

Spare Centre Finder Attachment for Combination Set TD201 D15

$135.31

Vintage ALLBRIT Fixed Arm Polar Planimeter, Mathmatical Measuring Instrument