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|  | Antique Wm H Pfister Brass 13" Telescopic Level Transit Orig Box Cincinnati Ohio $424.99 | |
 | ~ Early Physics Demonstration Magnetic Dip Needle, signed ~ $185.00 | |
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|  | Lot of (3) Early Brass 35mm Motion Picture Projector Lenses - circa 1897-1900 $270.00 | |
 | 1900 The National Engineer Steam Marine Electricity Hydraulics Chicago Ny Nr $5.99 | |
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|  | Eimer & Amend Scientific Apparatus Antique Copper Flask Warmer Steamer Rare $99.99 | |
 | Hauksbee Electrostatic Generator. Reproduction $349.99 | |
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|  | Industrial Instruments Wheatstone Bridge Model Rn-2 - Very Good condition $174.00 | |
 | Antique Telegraph Works, Silvertown, London Gavanometer No. 5576 w/Leather case $179.00 | |
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|  | c1848 Daniel Davis Boston Joseph Henry Electro-Magnet Demonstration Helix Coil $845.00 | |
 | Vintage Civil Defense Radiation Detector Victoreen 1961 Cold War Era Relic $69.99 | |
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|  | Antique Ca. 1900 Brass Cornelius Knudsen Reflecting Circle Sextant $379.00 | |
 | Antique Weston Electrical Instrument Co Large Volts Gauge p1901 Newark Nj Usa $395.00 | |
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|  | Yeast Fermentation Spores Cooking 90+ Y/O Ad Trade Card $5.24
Was:
Previous Price
$6.99 | |
 | Antique Electric Slate Copper Knife Switch Electrical Fuse Panel. Nice! $588.00 | |
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|  | New listing
Vintage Set Of 4 Ammeters In Complete Box With Manual And Key $149.99 | |
 | Vintage Leeds & Northrup Reflecting Galvanometer Made In The Usa $129.99 | |
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|  | Antique Brass & Wood Taylor Thermometer Confectioner Tool Spirits Lab $119.99 | |
 | Big Classic Voland Precision Balance Model 1115-Cd 1 mg $2,495.00 | |
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|  | Sextant. Troughton & Simms Ltd London. Mounted to Oval Wood Base. $350.00 | |
 | W & T Avery Agate Brass Balance Beam Scales Wood Base 61848 Large Weights $659.99 | |
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|  | Auburndale Watch Co. Mass. 19th Century Victorian Framed Metallic Thermometer $390.95 | |
 | 1946 Weston Electrical Instrument Dc Voltmeter Model 45 Excellent Condition $425.95 | |
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|  | Antique 1800's Little Hustler Bipolar Electric Motor $99.99 | |
 | Early Thales Pinwheel Calculator *Germany c.1915* $299.00 | |
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|  | Antique Electric Railway Marble Copper Knife Switch Electrical Fuse Panel Sf Ca $1,200.00 | |
 | Antique Doctor Rainforth Stereoscopic Skin Clinic 1910 Odd Freak Medical Disease $499.95 | |
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|  | 19th Century Troughton & Simms London Leveling Instrument & Wood Case $480.00 | |
 | Antique Wirt Co. Voltage 150 Watt Regulator $18.00 | |
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|  | Vtg Babcock Centrifuge Bottle Bath Dairy Science Cream Tester Milk Nafis Kimble $225.00 | |
 | 100W Ufo Led High Bay Light 110V for Warehouses Factories Supermarkets Stadiums $19.24 | |
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|  | Rare Vintage John Roach Surveyor's Pedometer! 1870's $500.00 | |
 | Antique Century Electric Co 1/3 Hp Single Phase Motor Frame M8 Type Rs 110/220V $99.99 | |
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|  | Antique Willy Young & Co. Brass Secohmmeter Lab Instrument $239.99 | |
 | Antique Wooden Case Weston D.C. Voltmeter $95.00 | |
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|  | Antique Brass Medical Scales by Degrave & Co. Circa 1900 $249.99 | |
 | Two (2) Antique Bipolar Electric Motor Generator Spring Shaft Couplings 1/2 7/16 $35.00 | |
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|  | Pat Nov 2nd 1886 Prosch 1st Model "Duplex" (Not Triplex) Camera Shutter / Lens $278.50 | |
 | 18Th C. Continental Octagonal Brass Sundial/Astrolabe - 2 1/8" - Nice & Rare-B/O $995.00 | |
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|  | Rare Centennial Revolving Almanac John Balch 1837 Boston 1800 to 1900 $440.00
Was:
Previous Price
$550.00 | |
 | Tiffany & Co. 1858 Transatlantic Telegraph Cable - Cyrus Field with Certificate $250.00 | |
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|  | antique brass gauge mil-ammeter (frank s.betz co/jewell inst co-standard) $174.00 | |
 | Large Mid 19th Century Cast Iron and Brass Rotating Scientific Instrument c.1860 $2,800.00 | |
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|  | Antique Ross Mensuration Geometrical Teaching Block Set, Original Crate 1900 $469.99 | |
 | Rare Antique 1910 Wagner 20 Hp 3 Phase Electric Motor Large Vintage Motor $900.00 | |
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|  | Syphon Barometer Atmospheric Pressure Gauge 1915 Ad Trade Card $6.99 | |
 | Antique Surveying Compass - Unsigned - Q1 $1,100.00 | |
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|  | Old Chinese opium scale in shaped wooden case $139.99 | |
 | Antique Hand Crank Centrifuge - Dairy Farmer Tool $50.00 | |
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|  | Antique 1880's-90's Lightening Solenoid Arrester by Garton Daniels, steampunk $75.00 | |
 | Antique Negretti & Zambra Aneroid Barometer Issued By Royal National Life Boat $150.00 | |
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|  | Vintage Murakami Electric Works Tokyo Pattern Direct Reading Resistance Box wood $99.99 | |
 | Art Nouveau Antique Fire Alarm Supervisory Rare Board Bronze Panel $569.00 | |
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|  | Antique Brass Surveying Transit Compass Measuring tool Cast Iron Legs Feet old $424.39
Was:
Previous Price
$496.37 | |
 | Vintage 18Th Century Wooden Compass Dividers Rev War Iron Caps 24" Nautical $99.00 | |
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|  | Antique 1890's Whitney Electrical Instrument Co Ac Dc Telegraph Wire Ohmmeter $212.49
Was:
Previous Price
$249.99 | |
 | Wilde's Dynamo-Electric Machine Invention 1915 Ad Trade Card $5.99
Was:
Previous Price
$7.99 | |
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|  | Rubicon Instruments Wheatstone Bridge Model #1052 $75.00 | |
 | Fantastic Antique Brass Case Norton Voltmeter Gage Steampunk Zucker Levett Loeb $129.99 | |
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|  | Rare Antique Palo Co France Andrew J Lloyd Co Boston Pedometer Porcelain Clean ! $490.50
Was:
Previous Price
$545.00 | |
 | Antique French Brass Cased Pocket Sundial, circa 18th Century $1,279.00 | |
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|  | Vintage Chemistry Glass Lab Apothecary Science Medical Antique Tube. $39.00 | |
 | Chemical Blow Pipe Antique Blow Pipe $65.00 | |
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|  | Rare Antique c.1850 Figural Renaissance Artist Raphael Metal Desktop Thermometer $229.97 | |
 | James Dewar Vacuum Flask Inventor Gases Chemist 90+ Y/O Trade Ad Card $5.99
Was:
Previous Price
$7.99 | |
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|  | Early Radiology Crookes X-Ray Tube Sciagram 90+ Y/O Ad Trade Card $7.49
Was:
Previous Price
$9.99 | |
 | 1900's Whitney Electrical Instrument Direct & Alternating Current Roller Ammeter $179.95 | |
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|  | Antique Brass Gas Carbide Lamp Light ? Scientific Instrument Signed B Prototype $2,605.50
Was:
Previous Price
$2,895.00 | |
 | Antique 1881 Electro Medical Galvanic & Faradic Apparatus Instrument Quack Med $350.00 | |
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|  | ~ Early Percussion Powder-Tester, Eprouvette, Engraved, working order ~ $675.00 | |
 | Vtg Antique French Compass Pendant Works Brass pocket compass France glass $75.00 | |
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|  | Late 1700s ~ Early 1800s Minty Spring Loaded Human Lancet Engraved Plated Cased $396.00
Was:
Previous Price
$495.00 | |
 | Antique Retro Brass Field Microscope Marked Made in France Original Patina $115.00 | |
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|  | Antique Vintage Weston Electrical Voltmeter Model 454 Wood Handle $30.00 | |
 | New listing
Antique Brass Barrel Field Pocket Microscope Vintage Specimen Early $29.99 | |
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|  | Vintage Rabone & Sons Machinist Spirit Level Made in England Fitting Wooden Case $199.99 | |
 | Antique English Victorian Solid Oak Aneroid Banjo Barometer $350.00 | |
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|  | New listing
Vintage Weston Electrical Ac & Dc Voltmeter Model 341 $9.95 | |
 | vintage Brass Nesting Apothecary Balance Scale Weights General Store Pharmacy $25.00 | |
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|  | ~ Ca 1860 St. Louis Cased Gold Scale w/ Jacob Blattner Label, Calif Gold Rush ~ $245.00 | |
 | Antique Laboratory Voltmeter, Weston Electric Instruments Model 6971, 1909 $265.00 | |
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|  | Antique Victorian marble thermometer with Malachite inlay $265.00 | |
 | Craig Lubricator $19.99 | |
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|  | Rare Torricelli founder o Hydrodynamics antique Theorem Demonstration Apparatus $250.00 | |
 | Antique Drafting Drawing Set In Excellent Condition. $59.00 | |
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|  | Antique Welch Scientific Electrical Apparatus Chicago Illinois $350.00 | |
 | ~ Early Elec Milliamperes Meter Instrument, McIntosh Chicago, Good Condition ~ $85.00 | |
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|  | Antique 1890's Taylor Instrument Companies Rochester, N. Y. Oil or Fluid Bottle $21.00 | |
 | Weston Electrical Instrument Company / Thomas Houston Electric Model 1 Voltmeter $1,999.99 | |
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|  | Antique Walters & Co London Circa 1900's Battery Electric On Off Switch Devise $145.00 | |
 | Early Spectroscope Apparatus Machine 90+ Y/O Ad Trade Card $7.49
Was:
Previous Price
$9.99 | |
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|  | Unusual 19thC Antique French Brass Field Microscope-Dbl Column/Pillar-Wood Case $599.99 | |
 | Functional Antique Replica Surveying Telescope with Wood Base. Estate Fresh. $115.00 | |
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|  | Antique Boston & Sandwich Glass Obelisk Cut Réaumur Thermometer Electric Blue $395.00 | |
 | Vintage Drysdale-Tinsley Vibration Galvanometer No. 2416 $299.99 | |
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|  | Sikes' Hydrometer I.P. Cutts Sutton & Sons Sheffield Antique $335.00 | |
 | Vintage Weston Electrical Instrument Model 370 Ammeter Wood Case good conditio $79.99 | |
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|  | Antique Hydraulic Press Demonstration Apparatus By Es Ritchie & Sons Boston 1866 $1,800.00 | |
 | Early Spectroscope Apparatus Machine 1915 Ad Trade Card $9.99 | |
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|  | Vintage Ward Leonard Electric 3012 Vitrohm Rheostat Rotary Dimmer Switch? Great $99.99 | |
 | Antique Brass Scientific Miniature Oil Lamp Projector Leveling Line Tool $1,040.00
Was:
Previous Price
$1,300.00 | |
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Prices current as of last update, 10/14/19 8:33am.
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