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Antique Northrup Ln Model 7 Deflection PotentiometerAntique Northrup Ln Model 7 Deflection Potentiometer $1,295.00 A Rare 19Th Century Copper G. Tagliabue HydrometerA Rare 19Th Century Copper G. Tagliabue Hydrometer $225.00
Vintage Antique Kustom Kraft Electric Usc Gold Foil Annealer 110 Volts 140 WattsVintage Antique Kustom Kraft Electric Usc Gold Foil Annealer 110 Volts 140 Watts $99.99 Resistance Box, Measures Electrical - *100 Years Old* - First of its kind!Resistance Box, Measures Electrical - *100 Years Old* - First of its kind! $83.00
Vintage Keleket Xray Machine Wire SpoolsVintage Keleket Xray Machine Wire Spools $199.00 Large Antique Denoyer Geppert Scientific Model Biological Anatomical?Large Antique Denoyer Geppert Scientific Model Biological Anatomical? $49.99
8 Arranged Diatom Microscope Slides by B. Hartley8 Arranged Diatom Microscope Slides by B. Hartley $108.49 Antique Sterling Magnifying Glass With Folding Handle, 7" Long When OpenAntique Sterling Magnifying Glass With Folding Handle, 7" Long When Open $105.00 Was: Previous Price $140.00
Camptonite fron Coalpit Bay Donaghadee N. Ireland Petrographic Microscope SlideCamptonite fron Coalpit Bay Donaghadee N. Ireland Petrographic Microscope Slide $45.00 Labradorite from Norway Microscope Slide for PolariscopeLabradorite from Norway Microscope Slide for Polariscope $95.00
Antique Hydraulic Press Demonstration Apparatus By Es Ritchie & Sons Boston 1866Antique Hydraulic Press Demonstration Apparatus By Es Ritchie & Sons Boston 1866 $1,800.00 Gaertner Earth Inductor / Delzennes Circle /Scientific ApparatusGaertner Earth Inductor / Delzennes Circle /Scientific Apparatus $99.99
Hall's patent pedulum postal scale 1895 gilt brassHall's patent pedulum postal scale 1895 gilt brass $69.30 Was: Previous Price $99.00 1850 1/5" Brass Objective Lens with Correction Collar by Smith & Beck1850 1/5" Brass Objective Lens with Correction Collar by Smith & Beck $74.00
Weston Model 7 Deflection PotentiometerWeston Model 7 Deflection Potentiometer $589.00 Dactylogyrus sp. (Gill Fluke) Whole Mount Microscope SlideDactylogyrus sp. (Gill Fluke) Whole Mount Microscope Slide $12.99
Weston Electrical Instrument Co A.C. Meter Model 155 Wood Box Leather HandleWeston Electrical Instrument Co A.C. Meter Model 155 Wood Box Leather Handle $35.95 Antique Weston Circuit Tester in nice Wood Box CaseAntique Weston Circuit Tester in nice Wood Box Case $39.00
New listing
		Steampunk Tagliabue Copper Case Gas Refinery Industrial Inspector InstrumentNew listing Steampunk Tagliabue Copper Case Gas Refinery Industrial Inspector Instrument $19.99 80 Catalogs Antique Am Meter Watthour Volt Instrument Ge Weston Thomson Edison80 Catalogs Antique Am Meter Watthour Volt Instrument Ge Weston Thomson Edison $49.95
Antique Weston A.C. Ammeter Electrical Testing Instrument Model 155Antique Weston A.C. Ammeter Electrical Testing Instrument Model 155 $9.95 Teacher's Guide to Illustration Manual to Accompany Holbrook's School ApparatusTeacher's Guide to Illustration Manual to Accompany Holbrook's School Apparatus $2,000.00
Platinocyanide of Magnesium Microscope Slide by Cole for Polariscope ViewingPlatinocyanide of Magnesium Microscope Slide by Cole for Polariscope Viewing $85.00 Vintage Ellis Reserch Laboratories, The Ellis Micro-Dynameter.Vintage Ellis Reserch Laboratories, The Ellis Micro-Dynameter. $125.00
New listing
		Vintage Octagonal Wooden Frame with Butterfly Art 10" Wall HangingNew listing Vintage Octagonal Wooden Frame with Butterfly Art 10" Wall Hanging $7.19 Was: Previous Price $14.39 New listing
		Antique Electric Light Bulb With Brass Base Thomson Houston StyleNew listing Antique Electric Light Bulb With Brass Base Thomson Houston Style $9.95
Original 19th century Sikes Hydrometer-complete in case-15312Original 19th century Sikes Hydrometer-complete in case-15312 $395.00 Antique Ward Leonard Slide Rheostat Columbia University Tag Lab DeviceAntique Ward Leonard Slide Rheostat Columbia University Tag Lab Device $44.99
New listing
		Ammeter Antique General Electric Ammeter No. 431419 Type P3 Parts RestorationNew listing Ammeter Antique General Electric Ammeter No. 431419 Type P3 Parts Restoration $28.98 Vintage Radio Set Analyzer - (1929-30) Jewell Pattern 199Vintage Radio Set Analyzer - (1929-30) Jewell Pattern 199 $85.00
Antique Very Early Scientific Invention Heater Spark Plugs Ceramic Switch WoodenAntique Very Early Scientific Invention Heater Spark Plugs Ceramic Switch Wooden $59.99 Mint-In-Box 1892 Blair Hawkeye Detective Camera w/Film Holder, Darlot Lens, MoreMint-In-Box 1892 Blair Hawkeye Detective Camera w/Film Holder, Darlot Lens, More $280.00
c1830 Antique Astronomy Print of Astronomical Instruments Telescope Equatorialc1830 Antique Astronomy Print of Astronomical Instruments Telescope Equatorial $12.99 Vintage Phillips Labs Ohio Light Bulb Tester Oak BoxVintage Phillips Labs Ohio Light Bulb Tester Oak Box $149.00
Chinese Market Scale Or Do'Tchin In Carved Box With Elephant Free U.S. ShipChinese Market Scale Or Do'Tchin In Carved Box With Elephant Free U.S. Ship $91.00 Was: Previous Price $130.00 Fel Wavemeter Frequency Engineering Labortories Inc 11 gig model Wcf-10711-4WFel Wavemeter Frequency Engineering Labortories Inc 11 gig model Wcf-10711-4W $175.00
Lot 5 Vtg Slide Rule Lafayette Keuffel & Esser Dietzgen Ruler K&E DecitrigLot 5 Vtg Slide Rule Lafayette Keuffel & Esser Dietzgen Ruler K&E Decitrig $127.46 Was: Previous Price $149.95 Vintage Antique Alcohol Meter Alcoholometer Hyrometer Distilling ToolVintage Antique Alcohol Meter Alcoholometer Hyrometer Distilling Tool $30.00
Antique Copper Lined Incubator Or Sterilizer Medical Laboratory ScientificAntique Copper Lined Incubator Or Sterilizer Medical Laboratory Scientific $349.99 Antique Scientific Instrument (possible Belinograph?)Antique Scientific Instrument (possible Belinograph?) $269.99
Fine & Rare Antique 18Th Century Balance, Original Case With Trade LabelFine & Rare Antique 18Th Century Balance, Original Case With Trade Label $349.00 c1880 Antique Astronomy Print of Planet Saturnc1880 Antique Astronomy Print of Planet Saturn $9.99
Cat Globoid Cell Leukodystrophy (Krabbe Disease) of the Brain Microscope SlidesCat Globoid Cell Leukodystrophy (Krabbe Disease) of the Brain Microscope Slides $95.00 Vintage Sterling Amperes Volt Meter - Made in Usa Patent Oct 3, 1916Vintage Sterling Amperes Volt Meter - Made in Usa Patent Oct 3, 1916 $19.99
Antique Watch Demagnetizers / Lot of 5 from great collectionAntique Watch Demagnetizers / Lot of 5 from great collection $75.00 New listing
		1922 Antique Voltmeter General Electric Co. Type Dp 2- Ny Usa Pat 08-11-15-18-New listing 1922 Antique Voltmeter General Electric Co. Type Dp 2- Ny Usa Pat 08-11-15-18- $50.00
Nephelinite from Lobau Saxony Petrographic Microscope SlideNephelinite from Lobau Saxony Petrographic Microscope Slide $45.00 Antique W & T Avery Agate Brass Balance Beam Scales 61848 LargeAntique W & T Avery Agate Brass Balance Beam Scales 61848 Large $695.00
Antique Wm H Pfister Brass 13" Telescopic Level Transit Orig Box Cincinnati OhioAntique Wm H Pfister Brass 13" Telescopic Level Transit Orig Box Cincinnati Ohio $424.99 Antique Galvanometer International Correspondence School Scranton PaAntique Galvanometer International Correspondence School Scranton Pa $85.00
H. G. Fischer portable x-ray machine apparatus. Tesla coil. ElectrotherapyH. G. Fischer portable x-ray machine apparatus. Tesla coil. Electrotherapy $800.00 Vintage Antique Voltage Regulator Steampunk Estate Sale FindVintage Antique Voltage Regulator Steampunk Estate Sale Find $49.39 Was: Previous Price $75.99
New listing
		Sm-Microscope by E. LeitzNew listing Sm-Microscope by E. Leitz $55.00 Philadelphite from Philadelphia Pennsylvania Microscope SlidePhiladelphite from Philadelphia Pennsylvania Microscope Slide $95.00
Muscovite Granite from County Dublin Ireland Petrographic Microscope SlideMuscovite Granite from County Dublin Ireland Petrographic Microscope Slide $45.00 Antique Short & Mason, Leedawl 1910's Nickel Plated Patented CompassAntique Short & Mason, Leedawl 1910's Nickel Plated Patented Compass $44.99
Vintage Chicago Industrial Instrument Co. Ac, Dc Volt Ohms MilliammeterVintage Chicago Industrial Instrument Co. Ac, Dc Volt Ohms Milliammeter $14.95 Microscopes by Bausch & Lomb 1876-1896Microscopes by Bausch & Lomb 1876-1896 $20.00
French Telescope, Signed "Chevallier'French Telescope, Signed "Chevallier' $4,500.00 Phyllobothrium from Spiral Valve of Big Skate Microscope SlidePhyllobothrium from Spiral Valve of Big Skate Microscope Slide $12.99
Cryptobia salmositica from Torrent Scalpin Blood Microscope SlideCryptobia salmositica from Torrent Scalpin Blood Microscope Slide $19.99 1921 Gardner Rodman Heliphone Crystal Radio ~ Rare 1st Pocket Radio1921 Gardner Rodman Heliphone Crystal Radio ~ Rare 1st Pocket Radio $99.00
Platinocyanide of Ammonium Microscope Slide by W. H. Walmsley for PolariscopePlatinocyanide of Ammonium Microscope Slide by W. H. Walmsley for Polariscope $85.00 c1885 Antique Astronomy Print of Moon - Lunar Craters - Moon's Surfacec1885 Antique Astronomy Print of Moon - Lunar Craters - Moon's Surface $7.99
Surveyor's Vernier Compass by W. & L.E. GurleySurveyor's Vernier Compass by W. & L.E. Gurley $1,195.00 1835 Antique Scottish McFarlane's Calculating Cylinder Glasgow Ready Reckoner1835 Antique Scottish McFarlane's Calculating Cylinder Glasgow Ready Reckoner $2,300.00
Rare Astatic Suspension Reflecting Galvanometer Elliott Brothers London c1890Rare Astatic Suspension Reflecting Galvanometer Elliott Brothers London c1890 $999.99 Antique Collectible Rare Hydrometer In Unique Wooden BoxAntique Collectible Rare Hydrometer In Unique Wooden Box $195.00
Antique Northrup Ln Model 7 Deflection Potentiometer - 440Antique Northrup Ln Model 7 Deflection Potentiometer - 440 $494.90 Nectobrachia (Parasitic Copepod) w.m. from Starry Flounder Microscope SlideNectobrachia (Parasitic Copepod) w.m. from Starry Flounder Microscope Slide $12.99
Microcotyle sp. from Gills of California Scorpionfish Microscope SlideMicrocotyle sp. from Gills of California Scorpionfish Microscope Slide $19.99 Olivine Dolerite from Dalhousie Australia Petrographic Microscope SlideOlivine Dolerite from Dalhousie Australia Petrographic Microscope Slide $45.00
1890's W.S. Hill Electric Co New Bedford Ma Early Electrical Age Knife Switch1890's W.S. Hill Electric Co New Bedford Ma Early Electrical Age Knife Switch $355.00 Vintage Sudbury Soil Test Kit Chemistry Vial Science Tubes ExperimentVintage Sudbury Soil Test Kit Chemistry Vial Science Tubes Experiment $32.19
House Mouse Embryo Serially Sectioned Microscope Slides (Theiler Stage 21)House Mouse Embryo Serially Sectioned Microscope Slides (Theiler Stage 21) $75.00 Antique Thermometer Seaford Liquors New York W Puppies SeeAntique Thermometer Seaford Liquors New York W Puppies See $7.50
Surveyors Solar Compass by John Roach circa 1868Surveyors Solar Compass by John Roach circa 1868 $12,000.00 Antique Switches (pair) Perkins In Line Tested Working Nickel On Brass UniqueAntique Switches (pair) Perkins In Line Tested Working Nickel On Brass Unique $89.95
Antique Electric Motor Knapp Ss 1910Antique Electric Motor Knapp Ss 1910 $100.00 Augite Lamprophyre from St. Clement's Bay Jersey Petrographic Microscope SlideAugite Lamprophyre from St. Clement's Bay Jersey Petrographic Microscope Slide $65.00
Weston Model 1 Rpm Analog Laboratory MeterWeston Model 1 Rpm Analog Laboratory Meter $149.00 American Dead Weight Gauge TesterAmerican Dead Weight Gauge Tester $650.00
1850 English Lacquered Brass Microscope with J.B. Dancer1850 English Lacquered Brass Microscope with J.B. Dancer $2,295.00 New listing
		Antique Vintage Telegraph Sound Relay - Circa 1890-1900 - Morse CodeNew listing Antique Vintage Telegraph Sound Relay - Circa 1890-1900 - Morse Code $225.00
1836 Brass Hammered Tool Calendar Calculator? Oddity Survey Nautical ?1836 Brass Hammered Tool Calendar Calculator? Oddity Survey Nautical ? $399.99 RareCatalog Arrow Hart&Hegeman H&H Electric Co Switch Socket Porcelain Lamp partRareCatalog Arrow Hart&Hegeman H&H Electric Co Switch Socket Porcelain Lamp part $60.00
New listing
		Exide Antique Battery 1915New listing Exide Antique Battery 1915 $1,250.00 Platinocyanide of Yttrium Microscope Slide by Cole for Polariscope ViewingPlatinocyanide of Yttrium Microscope Slide by Cole for Polariscope Viewing $85.00
Indianite (Anorthite) from Madras, India, Petrographic Microscope SlideIndianite (Anorthite) from Madras, India, Petrographic Microscope Slide $45.00 Obsidian with banded belonites from Mexico Petrographic Microscope SlideObsidian with banded belonites from Mexico Petrographic Microscope Slide $25.00
Antique French Multifunction Field Compass Made in FranceAntique French Multifunction Field Compass Made in France $79.00 New listing
		Antique Improved Willis Planimeter By James L Robertson & Sons 1900New listing Antique Improved Willis Planimeter By James L Robertson & Sons 1900 $99.99
vintage exquisite tesla coil apparatus ! collectiblevintage exquisite tesla coil apparatus ! collectible $5,000.00 Megalocotyle from Gills of Rockfish Microscope SlideMegalocotyle from Gills of Rockfish Microscope Slide $12.99
Antique Sudbury Soil Testing Kit Green Wood BoxAntique Sudbury Soil Testing Kit Green Wood Box $35.99 Vintage 1880 Henry L Scott Co Metal Eagle Plate Providence Rhode IslandVintage 1880 Henry L Scott Co Metal Eagle Plate Providence Rhode Island $117.50
Diatom Test (Nitzschia linearis) Microscope Slide by C. L. PeticolasDiatom Test (Nitzschia linearis) Microscope Slide by C. L. Peticolas $45.00 Dolerite (amygdaloidal) from Tynemouth Petrographic Microscope SlideDolerite (amygdaloidal) from Tynemouth Petrographic Microscope Slide $65.00
General Radio Co. Variable Inductor Type: 107 (J) Microhenrys SeriesGeneral Radio Co. Variable Inductor Type: 107 (J) Microhenrys Series $45.99 Foraminifera in Limestone from Chattanooga Microscope SlideForaminifera in Limestone from Chattanooga Microscope Slide $65.00
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Prices current as of last update, 09/22/17 4:40am.

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