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ANTIQUE EBONY AND BRASS 5 1/2" PARALLEL RULER

ANTIQUE EBONY AND BRASS 5 1/2" PARALLEL RULER

$27.51$13.76

ESEWAY H/I Dynamic Hardness Tester, RC 60, Used, Portable

ESEWAY H/I Dynamic Hardness Tester, RC 60, Used, Portable

$395.00$197.50

Unused Vintage Nameplate from Peabody Engineering Corp. NYC, Circa Late 1950s

Unused Vintage Nameplate from Peabody Engineering Corp. NYC, Circa Late 1950s

$9.95$4.97

Rotring Master Bow Compass

Rotring Master Bow Compass

$18.76$9.38

1950's PAECO ~ Catalog ~ INVERTERS VOLTAGE REGULATORS POWER SUPPLIES

1950's PAECO ~ Catalog ~ INVERTERS VOLTAGE REGULATORS POWER SUPPLIES

$19.99$9.99

Blundell (BRL) Tarrant Hydraulic Flow slide rule, UNUSED & based on Academy 306

Blundell (BRL) Tarrant Hydraulic Flow slide rule, UNUSED & based on Academy 306

$24.38$12.19

Vintage Technical Drawing Compasses & Dividers

Vintage Technical Drawing Compasses & Dividers

$16.24$8.12

DERCK'S GAUGE DIAL ONLY w Envelope VTG 1943 EUC Decimal Threads Tapers Angles

DERCK'S GAUGE DIAL ONLY w Envelope VTG 1943 EUC Decimal Threads Tapers Angles

$12.95$6.47

Vintage National Technical Schools Lesson No BL The Business Lessons

Vintage National Technical Schools Lesson No BL The Business Lessons

$7.49$3.75

1910s Willamette Iron & Steel Works Ad Electric Lighting Engines Power Machinery

1910s Willamette Iron & Steel Works Ad Electric Lighting Engines Power Machinery

$13.00$6.50

Ross London Repro Sextant with Wood Case

Ross London Repro Sextant with Wood Case

$20.00$10.00

2 Post WWII Anaconda Building & Magnet Wire Brochures Mined Copper C32D

2 Post WWII Anaconda Building & Magnet Wire Brochures Mined Copper C32D

$16.95$8.47

Westing House Electric Print Ad Mass Spectrometry WWII World War 2 Pittsburg PA

Westing House Electric Print Ad Mass Spectrometry WWII World War 2 Pittsburg PA

$19.99$9.99

VINTAGE c1979 ALBERTA SANDS CANADA ARTISTIC SOUVENIRS SAMPLES TARSANDS CRUDE OIL

VINTAGE c1979 ALBERTA SANDS CANADA ARTISTIC SOUVENIRS SAMPLES TARSANDS CRUDE OIL

$68.78$34.39

Republic Steel Decimal Equivalents Gage Data Reference Chart Cards VTG Cleveland

Republic Steel Decimal Equivalents Gage Data Reference Chart Cards VTG Cleveland

$17.50$8.75

1958 PACE Precision Test Equipment ~ Sales Flyer ~ VOM Oscilloscopes + more

1958 PACE Precision Test Equipment ~ Sales Flyer ~ VOM Oscilloscopes + more

$11.99$6.00

1961 ~ API ~Meter Relays ~ Sales Brochure / Catalog

1961 ~ API ~Meter Relays ~ Sales Brochure / Catalog

$19.99$9.99

ANTIQUE SET of 10 STANLEY BOXWOOD RULERS late Victorian + 1 other by Elliot&sons

ANTIQUE SET of 10 STANLEY BOXWOOD RULERS late Victorian + 1 other by Elliot&sons

$118.80$59.40

ANTIQUE VICTORIAN TECHNICAL DRAWING DRAUGHTMANS SET WITH INSTRUMENTS

ANTIQUE VICTORIAN TECHNICAL DRAWING DRAUGHTMANS SET WITH INSTRUMENTS

$56.27$28.14

1958 ~ API ~ Versatrol ~ Meter Relays ~ Sales Brochure / Catalog

1958 ~ API ~ Versatrol ~ Meter Relays ~ Sales Brochure / Catalog

$19.99$9.99

Vintage Blundell (B.R.L.) Academy 302 LOG/LOG Slide Rule With Plastic Case

Vintage Blundell (B.R.L.) Academy 302 LOG/LOG Slide Rule With Plastic Case

$12.51$6.25

Vintage Engineer Directional Compass Black Plastic Compass Navigation Japan Glow

Vintage Engineer Directional Compass Black Plastic Compass Navigation Japan Glow

$10.00$5.00

SUN HEMMI BAMBOO SLIDE RULE AND LEATHER CASE POCKET SIZE

SUN HEMMI BAMBOO SLIDE RULE AND LEATHER CASE POCKET SIZE

$18.76$9.38

Taylor Hobson/Hilger And Watts Clinometer TB108-1.

Taylor Hobson/Hilger And Watts Clinometer TB108-1.

$81.28$40.64

Drapas Drafting Set

Drapas Drafting Set

$99.26$49.63

Vintage GE RPM & Time Calculator Dial

Vintage GE RPM & Time Calculator Dial

$5.00$2.50

Vintage AG Thornton PIC No.111 Slide Rule With Original Box

Vintage AG Thornton PIC No.111 Slide Rule With Original Box

$11.88$5.94

Vintage Brass Protractor/Compass Made in England

Vintage Brass Protractor/Compass Made in England

$10.00$5.00

Crunch Labs By Mark Rober Duck Game Brand New

Crunch Labs By Mark Rober Duck Game Brand New

$40.00$20.00

Vintage The Speed-Up Geometry Ruler with Booklet & Sleeve- Good Condition

Vintage The Speed-Up Geometry Ruler with Booklet & Sleeve- Good Condition

$21.00$10.50

1883 magazine engraving ~ MANUFACTURE OF IRON BY THE PETROLEUM PROCESS

1883 magazine engraving ~ MANUFACTURE OF IRON BY THE PETROLEUM PROCESS

$8.59$4.29

OLD HALL BROs SURVEYORS LEVEL / SIGHT IN CASE

OLD HALL BROs SURVEYORS LEVEL / SIGHT IN CASE

$75.02$37.51

July 1927 Chicago Engineering Review Magazine Cooke School of Electricity

July 1927 Chicago Engineering Review Magazine Cooke School of Electricity

$12.99$6.50

Vintage Staedtler Spring-Bow Compass & Case 557 00 SK Technical Drawing Inst.

Vintage Staedtler Spring-Bow Compass & Case 557 00 SK Technical Drawing Inst.

$15.01$7.50

VINTAGE Airco Speer Resistor Conductor Color Code for Electronic Components

VINTAGE Airco Speer Resistor Conductor Color Code for Electronic Components

$26.42$13.21

Vintage Faber-Castell Novo-Duplex No 2/83 Precision Slide Rule

Vintage Faber-Castell Novo-Duplex No 2/83 Precision Slide Rule

$131.30$65.65

Western Drafting Tools Set

Western Drafting Tools Set

$114.12$57.06

Vintage Draughting Equipment

Vintage Draughting Equipment

$18.76$9.38

VINTAGE GRAPHOPLEX FRENCH SLIDE RULE 1614 IN ORIGINAL CASE 1960's

VINTAGE GRAPHOPLEX FRENCH SLIDE RULE 1614 IN ORIGINAL CASE 1960's

$25.00$12.50

Vintage Armstrong Calculator for estimating flooring materials in excellent cond

Vintage Armstrong Calculator for estimating flooring materials in excellent cond

$25.01$12.51

1963 - Electronics -First IEEE Brochure / Booklet

1963 - Electronics -First IEEE Brochure / Booklet

$9.99$5.00

1962 C.P Clare & Co. ~ Application Manual 401 ~ counting with Clareed

1962 C.P Clare & Co. ~ Application Manual 401 ~ counting with Clareed

$19.99$9.99

Original Elliott Bros Darke’s Patent No. 1210 Steam Engine Indicator Tool

Original Elliott Bros Darke’s Patent No. 1210 Steam Engine Indicator Tool

$106.29$53.15

Vintage B.R.L. Slide Rule No. AL6 BLUNDELL in Original Hard Case 11" Long

Vintage B.R.L. Slide Rule No. AL6 BLUNDELL in Original Hard Case 11" Long

$8.75$4.38

Vintage Westinghouse Electric Engineering Inventors Award of Merit Program 1936

Vintage Westinghouse Electric Engineering Inventors Award of Merit Program 1936

$21.30$10.65

VINTAGE BOXWOOD SCALE RULER 1ft - Armstrong - Multiple Graduations

VINTAGE BOXWOOD SCALE RULER 1ft - Armstrong - Multiple Graduations

$7.50$3.75

Crunch Labs by Mark Rober, Propeller Launcher Build Box, New opened Box

Crunch Labs by Mark Rober, Propeller Launcher Build Box, New opened Box

$30.00$15.00

New 5x7 Photo: Electrical Engineering Pioneer and Visionary Nikola Tesla

New 5x7 Photo: Electrical Engineering Pioneer and Visionary Nikola Tesla

$8.99$4.50

BRASS SURVEYOR COMPASS by SEH, serial no:6303 , RED AND GREEN LENSES AND LID

BRASS SURVEYOR COMPASS by SEH, serial no:6303 , RED AND GREEN LENSES AND LID

$62.51$31.25

Vintage Drager German Breathing Equipment Engineering Company Pin Badge

Vintage Drager German Breathing Equipment Engineering Company Pin Badge

$12.00$6.00

Cooke Troughton & Simms 20 inch Rule Brass Nautical Chart Ruler Number H O 116

Cooke Troughton & Simms 20 inch Rule Brass Nautical Chart Ruler Number H O 116

$125.05$62.52

Watts Vernier Instrument Catalogue (78)

Watts Vernier Instrument Catalogue (78)

$7.50$3.75

4x Vintage 6" scale rules - Faber Castell, Harling (GPO) and J.Halden examples

4x Vintage 6" scale rules - Faber Castell, Harling (GPO) and J.Halden examples

$16.19$8.10

VINTAGE UNIQUE UNIVERSAL SLIDE RULE IN ORIGINAL CASE ENGLAND SCINTIFIC

VINTAGE UNIQUE UNIVERSAL SLIDE RULE IN ORIGINAL CASE ENGLAND SCINTIFIC

$15.63$7.82

National Technical Schools Color Television Lessons CT-8 thru CT-12 + 3 Inserts

National Technical Schools Color Television Lessons CT-8 thru CT-12 + 3 Inserts

$6.99$3.50

Vintage Allbrit Polar Planimeter (Cica 1970).

Vintage Allbrit Polar Planimeter (Cica 1970).

$56.27$28.14

Vintage BACHARACH B Serdex Hygrothermograph 122-70xx Pittsburg USA AS-IS

Vintage BACHARACH B Serdex Hygrothermograph 122-70xx Pittsburg USA AS-IS

$66.47$33.23

Vtg Alltel Cell Phone Tower Construction Manual with 18 Blueprints-1988-1991

Vtg Alltel Cell Phone Tower Construction Manual with 18 Blueprints-1988-1991

$39.00$19.50

Hyster Watch Fob Shl1A4-3

Hyster Watch Fob Shl1A4-3

$5.95$2.98

1965 Sandia Corp Albuquerque NM Nuclear Atomic Energy Research Help Wanted Ad

1965 Sandia Corp Albuquerque NM Nuclear Atomic Energy Research Help Wanted Ad

$9.98$4.99

Vintage 1940's Cowley Automatic Level - Original Leather Case - Good Condition

Vintage 1940's Cowley Automatic Level - Original Leather Case - Good Condition

$24.95$12.47

Vintage Large Mathematical Drawing Set

Vintage Large Mathematical Drawing Set

$18.74$9.37

1960s ~ BUD Radio Inc. ~ Catalog No. 157A ~ Electronic Industrial Equipment

1960s ~ BUD Radio Inc. ~ Catalog No. 157A ~ Electronic Industrial Equipment

$19.99$9.99

1950s ~ BUD Radio Corp ~ Catalog ~ Electronic Enclosures Sheet metal products

1950s ~ BUD Radio Corp ~ Catalog ~ Electronic Enclosures Sheet metal products

$19.99$9.99

Vintage Hilger & Watts Surveyors Level - Made in England

Vintage Hilger & Watts Surveyors Level - Made in England

$37.52$18.76

Mueller Volume Calculator / Slide Chart - US English / Metric - USA product

Mueller Volume Calculator / Slide Chart - US English / Metric - USA product

$9.32$4.66

1960s ~ PAR-METAL ~ Catalog ~ Electronic Enclosures Cabinets Chasis Panels

1960s ~ PAR-METAL ~ Catalog ~ Electronic Enclosures Cabinets Chasis Panels

$19.99$9.99

Make Your Own TV Repairs by Art Margolis Book Vintage 1966 Television How to

Make Your Own TV Repairs by Art Margolis Book Vintage 1966 Television How to

$5.95$2.98

Vintage Ascola Mechanical Drafting Compass Made in Germany.Original Case gr2

Vintage Ascola Mechanical Drafting Compass Made in Germany.Original Case gr2

$12.95$6.47

ANTIQUE BOXWOOD & BRASS FOLDING SET SQUARE RULE RULER BEVEL GAUGE

ANTIQUE BOXWOOD & BRASS FOLDING SET SQUARE RULE RULER BEVEL GAUGE

$31.25$15.63

DANNERT &Pape Altona DUPA No 590 Planimeter Germany In Orig Kolesch & Co Box

DANNERT &Pape Altona DUPA No 590 Planimeter Germany In Orig Kolesch & Co Box

$179.99$90.00

Log-Log Slide Rule Boxed 6" UNIQUE Technical Supply Co Brighton Antique

Log-Log Slide Rule Boxed 6" UNIQUE Technical Supply Co Brighton Antique

$27.51$13.76

Vintage 1967 Technical Schools Picture Displays for TV Trouble-Shooting

Vintage 1967 Technical Schools Picture Displays for TV Trouble-Shooting

$7.49$3.75

Vintage Stanley, London - Architects Surveyors Level Theodolite - No 41232

Vintage Stanley, London - Architects Surveyors Level Theodolite - No 41232

$75.02$37.51

Motorola Engineers Club Christmas Party Plastic Letter Opener Circa 1965

Motorola Engineers Club Christmas Party Plastic Letter Opener Circa 1965

$9.99$5.00

1960 Professional Engineering Examinations Mechanical Problems NY State engineer

1960 Professional Engineering Examinations Mechanical Problems NY State engineer

$7.99$4.00

Vintage Engineer Lensatic Survey Directional Compass Made in Taiwan Pre-owned

Vintage Engineer Lensatic Survey Directional Compass Made in Taiwan Pre-owned

$10.00$5.00

Vintage Oil Painting on Board LLandudno Happy Valley Naive Welsh Art Signed

Vintage Oil Painting on Board LLandudno Happy Valley Naive Welsh Art Signed

$41.27$20.64

Noodle Your IQ Metal Puzzle Hard Level 5 ORBIT- Challenge your skills FREE SHIP

Noodle Your IQ Metal Puzzle Hard Level 5 ORBIT- Challenge your skills FREE SHIP

$10.99$5.50

VINTAGE HAMILTON WATCH CO. MODEL 331 MAP MEASURER WITH ORIGINAL BOX

VINTAGE HAMILTON WATCH CO. MODEL 331 MAP MEASURER WITH ORIGINAL BOX

$19.00$9.50

Vintage Hilger & Watts No.1 Microptic Surveyors Theodolite ~ Engineering Decor

Vintage Hilger & Watts No.1 Microptic Surveyors Theodolite ~ Engineering Decor

$125.05$62.52

Vintage Foreign Germany Stainless Steel Drafting Compass Tool Working , VGC

Vintage Foreign Germany Stainless Steel Drafting Compass Tool Working , VGC

$16.24$8.12

13 Abstracts from 2nd Intl Conf on Peaceful Uses of Atomic Energy 1958 Geneva

13 Abstracts from 2nd Intl Conf on Peaceful Uses of Atomic Energy 1958 Geneva

$2.00$1.00

Vintage Vemag Maschinenbau GmbH German Packaging Company Pin Badge

Vintage Vemag Maschinenbau GmbH German Packaging Company Pin Badge

$14.00$7.00

Vintage ARCLIGHT RADIUS CURVE Drawing Tool For Draughtsmen Designers Architects

Vintage ARCLIGHT RADIUS CURVE Drawing Tool For Draughtsmen Designers Architects

$7.50$3.75

Vintage A Line The Academy Engineer Lensatic Compass W/Glow in The Dark Hands

Vintage A Line The Academy Engineer Lensatic Compass W/Glow in The Dark Hands

$10.00$5.00

ALUMINUM PIECES TESTING (OWNED BY A REFRIGERATION ENGINEER) MAGNET NOT STICKING

ALUMINUM PIECES TESTING (OWNED BY A REFRIGERATION ENGINEER) MAGNET NOT STICKING

$25.99$12.99

VINTAGE CLINOMETER IN LEATHER CASE

VINTAGE CLINOMETER IN LEATHER CASE

$62.51$31.25

1960's Hema Model of Engine Cross-Section Cutaway Education Model

1960's Hema Model of Engine Cross-Section Cutaway Education Model

$406.41$203.21

BRASS SURVEYOR'S COMPASS - ELLIOTT BROTHERS STRAND LONDON CR 1900

BRASS SURVEYOR'S COMPASS - ELLIOTT BROTHERS STRAND LONDON CR 1900

$250.10$125.05

British Thornton Design Steel Technical Drawing Compass for use with pencil

British Thornton Design Steel Technical Drawing Compass for use with pencil

$12.49$6.25

SEALED Vintage PICKETT Protractor No. 6180 Clear Plastic 6" / 180 degrees

SEALED Vintage PICKETT Protractor No. 6180 Clear Plastic 6" / 180 degrees

$5.55$2.77

Mechanics & Science Bulletin of Technical Information NTS Vol 27 No 1

Mechanics & Science Bulletin of Technical Information NTS Vol 27 No 1

$7.49$3.75

Vintage National Technical Schools Unit Examinations Lessons No FCR-1 to BL-21

Vintage National Technical Schools Unit Examinations Lessons No FCR-1 to BL-21

$7.49$3.75

Antique Steam Engine Indicator - the predecessor to modern engine diagnostics!

Antique Steam Engine Indicator - the predecessor to modern engine diagnostics!

$368.90$184.45

VINTAGE UNIQUE SLIDE RULE made in ENGLAND in ORIGINAL BOX

VINTAGE UNIQUE SLIDE RULE made in ENGLAND in ORIGINAL BOX

$12.49$6.25

Crunch Labs Coin Spinner

Crunch Labs Coin Spinner

$49.99$25.00

Vintage Carboloy Pocket Protector and Conversion Chart General Electric

Vintage Carboloy Pocket Protector and Conversion Chart General Electric

$6.00$3.00

DEFCON 32 (2024) Human Badge Raspberry Pi RP 2350

DEFCON 32 (2024) Human Badge Raspberry Pi RP 2350

$199.00$99.50

DRAFTING DRAWING SET ORIGINAL RICHTER P Va TECHNICAL VINTAGE DDR AUTHENTIC NOS

DRAFTING DRAWING SET ORIGINAL RICHTER P Va TECHNICAL VINTAGE DDR AUTHENTIC NOS

$70.80$35.40