$30.96

VINTAGE ADVERTISING RULE RULER SUPERLINTEL TEH SPCIFIERS LINTEL

$2.02

UNIQUE SLIDE RULES "HALF-HOUR" INSTRUCTIONS BOOKLET - CONVERSION TABLE FOR MONEY

$115

CPA DIGICOMP MODEL 5M73C M5 MEMORY CALCULATOR ESMOND METRIC MASTER

$50

Vintage electricity vat hour meter, Electric measuring device(8.5)

$71.51

Vintage SURVEYING LEVEL N-3 Theodolite transit surveyor binoculars manocl

$65.86

Geometer's Pantometer Square Surveyor 19th Century - Complete

$24.24

Faber-Castell Slide Rule 1/87 Wood & Plastic with Case Made in Germany

$90.79

Vintage Calculator Machine

$215.47

theodolite Broughton Simms

$51.99

Vintage Russian Soviet USSR CCCP Polar Planimeter PP-M

$3

ENZINGER German Company Advertising Pin Badge

$6.72

VINTAGE CENTEX Hard Plastic Draughtsman Ruler Ref: 204