$66.29

ARISTO Scholar Nr. 0903 VS Slide Rule and original Case. Made in Austria

$48.7

Lee Guiness S.953 Draftsman Drawing Set - complete

$14

GE Control & Protective Device Starters Selector vintage Slide Calculator

$21.64

Vintage Map Range Measurer Opsiometer Reader Compass & Magnifier All in One Tool

$33.82

Vintage Maw London Long Metal Marking Tool With Roller Head And Pointed Tip

$81.19

Keuffel & Esser Co N.Y Slide Rule In Leather Case N4053-3 (G.5)

$67.66

AUSTIN WEIGHT CALCULATOR .JAMES AUSTIN & SONS LTD .& ORIGINAL BOX & INSTRUCTIONS

$13.52

UNIQUE Log Log Slide Rule - Made In England - Boxed

$39.24

Vintage ‘Rabone’ 36 inch Folding Boxwood Ruler (No. 1167)

$254.25

Rare THALES Mechanical Calculator - VERY GOOD CONDITION

$228.69

Hilger Watts London no 89877 SURVEYORS LEVEL Green Liquid Level Original etc,

$17.52

Minerva Lettering Stencil No5 621 (Fine) . Durable Orange Acetate Vintage