- $338.21 Antique Vintage Singing Rheotome Electrical Stimulation Therapy Device Box
- $116.99 KOH-I-NOOR RAPIDOGRAPH SCRIBER Engineering Lettering Guides in Case (Read) As-Is
- $170.00 Rare - 1919 First Annual Aeronautical Exposition Medallion With Chain.
- $229.99 Nautical U.S. Navy Rolling Parallel Ruler Solid Bronze BU Ships 1942 WW2
- $59.00 Vintage KOH-I-NOOR RAPIDOGRAPH Engineering Drafting Drawing Lettering PENS PEN
- $85.00 Antique Alcohol Burner
- $1695.00 Circa 1865 August Lingke & Co. Mahogany Cased Assayer's Kit
- $8.99 Antique Keuffel & Esser Co. NY Polyphase Slide Rule Pat. June 5th 1900 N4053-3
- $175.00 L.E. Knott Apparatus Company Sectional Model of a Steam Engine (early 1900’s)
- $800.00 CA 1910 W.B. BERRY & CO BOSTON NOS PEANUT ROASTER PROPANE / GAS FIRED MUST C
- $49.95 STOPPANI & Co. LTD. Compass Berne Switzerland Precision Instrument Pre-owned
- $30.00 Antique Building Construction Technical Drawing - Details of Masonry - 1895
- $99.00 Tavernier-Gravett Slide Rule 1923 Made in France
- $138.45 1910 German A.W. Faber #367 DRP 206428 Slide Rule w/Registering Cursor Pointer
- $96.00 (13) LG 1896-98 Issues SCIENTIFIC AMERICAN, War w/Spain, Photos, USS Mass, Dewey
- $92.00 Large Antique Slide Rule By Neuhöfer & Sohn Wien Austria 1920s - 1930s
- $80.00 Vintage STOPPANI & Co. LTD. Compass Berne Switzerland Precision Instrument Works
- $23.99 1928 Keuffel & Esser Co Catalogue - 37th Ed - Surveying, Drafting, Forestry
- $519.16 Tamaya Co ltd Surveying Theodolite Transit w/ Original wooden Box Antique VTG
- $45.00 Antique 1900s E.O. Richter Drafting Drawing Compasses Set Tool Case IX.P
- $50.00 1917 G. Coradi Plainmeter Land Area Surveying Instrument W/Case~ Switzerland
- $50.00 c 1890 COMPLEX MACHINE, CABINET CARD PHOTOGRAP by GOKAY of BENNINGTON Vermont VT
- $439.39 Antique Very Well Detailed SCALE MODEL of EARLY STEAM ENGINE
- $9.95 Vintage Eagle Pencil Co. Metal Flower Pattern Compass / Divider - USA
- $19.95 Complete Set of 50 Vintage ENGINEERING Cards from 1927
- $94.50 1920's Precision Wavemeter, Type 224L, Serial No.30 With Charts Untested Scarce!
- $40.00 Rare Antique Wet/Dry Bulb U Manometer In Metal Case Free Shipping
- $45.00 Antique G. Coradi Zurich Switzerland Planimeter. Complete in box
- $269.99 Rare antique Automatic Micrometer cast iron inspection tool
- $475.00 Rare! Antique 1900's Brass Surveying Surveyor's Sight Compass W/ Original Box
- $399.00 ANTIQUE BIG 20 LBS WWII MILITARY SUBMARINE ELECTRIC DOOR CLOSING CONTROL SWITCH
- $245.50 ANTIQUE G.CORADI ZURICH SWITZERLAND PLANIMETER
- $226.00 Antique Drawing Instrument Set Drafting Engineering Cartography Pocket Case 19C
- $59.99 VINTAGE Antique Drafting Brass Compass Set in Wood Case, Protractor
- $39.55 Antique air water pressure DEMONSTRATION DEVICE LAB COLLEGE 17" Rare
- $600.00 VINTAGE JET ENGINE COMBUSTION RING WITH FUEL VANE INSERTS MUST SEE
- $24.99 American Institute of Mining & Metallurgical Engineers, Student Fob
- $339.96 ANTIQUE GURLEY PLANE TABLE ALIDADE BEAMAN STADIA ARC. CIVIL ENGINEER SURVEYING
- $639.39 POL Antique REV WAR ERA DRAFTING SET in Shagreen Lizard Case ENGINEERING TOOL
- $600.00 Cast Iron Antique Industrial Dietzgen Co. 1910 Telescoping Drafting Pedestal
- $821.25 Antique Georgian Shagreen Etui, Drafting Tools Kit, Architect or Cartography Box
- $49.95 Rare Antique Original 1800's Brass Surveying Surveyor's Sight Compass Plumb Bob
- $99.99 1848 ANTIQUE NATURAL PHILOSOPHY MECHANICAL ENGINEERING BOOK MECHANICS PNEUMATICS
- $15.95 Eagle Pencil Co. 1894 Spring Loaded Metal Flower Pattern Compass Divider Ornate
- $25.00 Keuffel & Esser Wooden Measuring Tool W/ Leather Case- NePAGE, McKenny Engineers
- $14.99 VTG Inch To Foot Measuring Tool Measure Made In Western Germany
- $499.99 KEUFFEL & ESSER Co. antique brass early 1900's surveyor's compass w/ wood box
- $1350.00 *SUPER RARE* General Electric Co. / Thomson-Houston System Ammeter (ca. 1889)
- $34.99 Visage Viscosity Comparator Gauge - Original Wood Box - Louis C. Eitzen
- $499.00 Antique 1903 Keuffel & Esser Co. Catalog - drafting tools drawing surveying
- $2400.00 1949 Buff & Buff Saegmueller Solar Transit - a Beauty
- $21.00 Antique/Vintage Eagle Pencil Co. New York USA Floral Pattern Compass/Divider
- $55.00 Vintage Bell System New England Telephone and Telegraph company gold filled pin
- $65.00 Antique brass pocket optical Survey Prism surveying tool equipment ca 1890
- $1950.00 *SUPER RARE* Thomson-Houston System Ammeter (ca. 1886)
- $3.95 Vintage 1915 Trade Card of a VACUUM BRAKE Railroad Train
- $25.00 Antique Brass Engineering Hand Sight Level Surveying Transit Scope Tool
- $850.00 Rare! Antique Victorian 1800's Surveying Compass - Display Piece
- $65.00 Antique Brass Compass Measuring Drafting Engineering Tool Victorian - Edwardian
- $1150.00 *EARLY* Induction Ammeter (ca. 1890s)
- $3.95 Vintage 1915 Trade Card of a STEAM SHOVEL or STEAM NAVVY Excavator
- $129.00 1910's The MASKELL GEORGE Company ELECTRIC Fixtures Cleveland Ohio
- $444.00 Antique 1800’s A.G. Thornton British Drafting Set in wood case
- $299.00 Antique Vintage Surveying Transit Compass Tripod 2 Wood Brass W. & L.E. Gurley
- $85.00 Antique Brass Dieterich Post San Francisco Pocket Surveyor Level
- $18.99 Antique CENCO F173A right angle clamp V block with rod opening
- $199.99 RARE Antique JH Steward Surveying Telemeter Surveyor Tool w Case Range Finder
- $8.95 1905 Article PORTABLE ELECTRIC POWER PLANT Emergency Gas Electrical Generator
- $8.95 1905 Article POWERFUL WINTER RAILWAY CAR FERRIES FOR DETROIT RIVER Michigan MI
- $1499.99 RARE Antique WM. Stokes Surveyor Compass Transit W/ Wood Case Cincinnati Ohio
- $65.00 Antique B&B Folding Drafting & Measurement rule by I.J. Owen. Richmond, VA.
- $364.79 Philip Harris Ltd, Birmingham. Demonstration model AC MOTOR C. 1930's
- $28.88 VINTAGE ANTIQUE DRAWING DRAFTING Set POST EXCELSIOR 794 Tools & Case USA. C4
- $150.00 DRAFTSMAN PARRALELL ROLLING RULER BRASS THE ONTARIO HUGHES CO. CANADA NAVIGATION
- $8.95 1905 Article AUTOMATIC JOURNEY RECORDER FOR CARS Substitute for Tires RUBBER
- $2500.00 Rare 1850's era Antique Konrad Wuger Surveyors Compass manufactured in St.Louis
- $2400.00 Antique Civil War Era J.T. Hobby New York Brass Railroad Surveyors Compass & Box
- $34.95 1880s F.C. Wells Steam Pump Works Pumping Engines Advertising Booklet Chicago
- $99.99 Coradi Planimeter Land Area Surveying Instrument Switzerland W/case Integration
- $9.99 VINTAGE ORIGINAL - 1960 ZENITH COLOR TV OPERATING INSTRUCTIONS TUNING WHEEL
- $1500.00 1928 Berger Mining Surveying Transit w/Side Scope and Counterweight
- $39.90 Antique The Frederick Post Co Drafting Tool Set in Case
- $40.00 Visage Viscosity Comparator Gauge - Original Wood Box - Louis C. Eitzen CO. MJI
- $5.95 Five ENGINEERING Cards from 1927 CANAL CONSTRUCTION Panama Canal CANADA USA +++
- $115.95 Vintage Pat Dec 22 1908 Superior A.L.L. Co. Medicinal Sifter Strainer
- $34.99 Antique Zeiss Optimeter Box and Parts Vintage Wooden Box Dovetail
- $600.00 1903 Heller Brightly Survey Transit w/box Bought by H. Luber Co.
- $29.99 Antique B&B Folding Ruler Protractor 🇺🇸 Westbrook Publishing Phila. PA
- $619.99 Rare Unrestored STANLEY Rule and Level No. 74 Floor Plane Type One circa 1885
- $439.99 PELTON WATER WHEEL Co. 1906 Wall Mount Brass Vacuum Gauge Crosby Steamgage Valve
- $45.00 Vtg G. Coradi Zurich Compensating Polar Planimeter Berger & Sons Surveying
- $44.95 10 1910s TAGS FROM A HUN BERRY FAN CO VENTILATING WHEELS BOSTON MA DENNISON MFG
- $7.99 Antique Ecco German Drafting Set Complete Fitted Box Compass Lead Case Tool
- $19.90 c1919 Trasparule Transparent Ruler Co Hartford CT Ruler Display Card Drafting US
- $99.99 1842 ANTIQUE MECHANICS PNEUMATICS OPTICS MACHINIST OPTICS BOOK JAMES PILKINGTON
- $8.99 1894 Arithmetic of Practical Measurements, Western School Supply, Des Moines
- $80.00 Empire Electrical Instrument co Solid Brass 1878 NY NY RARE RAILROAD
- $18.00 vintage Turtle's Standard Gauge brass New York Card 5419 13"
- $65.00 VTG Keuffel & Esser 4053-3 10-Inch Slide Rule Polyphase (Mannheim) Mahogany
- $1000.00 Antique Surveyors Transit With Box And Tripod