$27.26

1965 Seneca Falls Machine Power Amps Servo Controls Engineering Catalogs NY

$15.96

Engineering News June 6 1895 Article & Foldout 70,000 LB Coal & Ore Car PA

$25.57

BOFA Drawing Instruments D417 - People’s Republic Of China

$80

Sanitary Code Milk Ordinance Public Water Health Department 1940s Connecticut a

$30.91

Rotring Technical Drawing Compass Set With Case Spare Leads Used Good

$14.75

Vintage Draughtsman's Compass Set in Case (DEB11)

$13.45

Vintage engineers' slide rule Faber-Castell model 1/87 System Rietz boxed German

$10.77

Lawrence Engineering vintage slide rule made in USA nice condition

$67.34

RARE - ANTIQUE STANLEY BRASS PLANIMETER DRAWING INSTRUMENT IN CASE

$21.53

Vintage Wedoco 464 Engineering Precision Drawing Compass (Part Set) Technical

$119

DEFCON BADGE Defcon 22 Human PCB Badge - Year 2014. Includes original lanyard

$24.31

Eyre Spottiswoode Aristo Etc Draughtsman Slide Rules Ruler Etc Vintage Tooling