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19c Antique SIKES's HYDROMETER No 2770 Bate No 21 Poultry London UNITED KINGDOM

$ 30.8 $ 18.48

RARE OLD VINTAGE ANTIQUE ORIGINAL 1900's ELECTRIC VOLTAGE RED BATTERY CELL ???

$ 43.95 $ 26.37

1915 Leeds and Northrup Company Resistor Tester Decade Box 324513 No Reserve!

$ 8.79 $ 5.27

Vintage Wilesco Steam Boiler & Engine Toy Model made in Germany

$ 51.92 $ 31.15

Sikes' HYDROMETER E GRAY LONDON in Fitted Mahogany Case Partial Set See Pictures

$ 10.56 $ 6.33

19c Antique SIKES's HYDROMETER No 8062 Bate No 21 Poultry London UNITED KINGDOM

$ 22 $ 13.2

E O Richter & Co Pracision Drafting instruments with dotting pen antiques

$ 66 $ 39.6

Vintage Steam Engine, Boiler, and Burner in storage case.

$ 198 $ 118.8

500 gram Brass Balance Weight - 500g

$ 8.79 $ 5.27

Vintage Brass Military Binoculars & Weather Temperature & Forecaster

$ 17.59 $ 10.55

Wilde's Dynamo-Electric Machine Invention 1915 Ad Trade Card

$ 11.43 $ 6.85

Late C19th Indian Bronze Universal Equinoctial Ring Traveller's Sundial Sanskrit

$ 1408 $ 844.8

Vintage DeVILBISS Glass Atomizer Inhaler Patented 1888 In Box W/Paper Work

$ 35.19 $ 21.11

Botany Microscope Slides (C)

$ 26.4 $ 15.83

Fish Tapeworm (Diphyllobothrium latum) Segments Microscope Slide

$ 8.8 $ 5.28

Ichthyosporidian in liver Microscope Slide

$ 8.8 $ 5.28

Ancylostoma caninum Female (Hookworm) Whole Mount Microscope Slide

$ 13.2 $ 7.91

Collection of 8 Verbenaceae (Verbena) Family Pollen Microscope Slides

$ 26.4 $ 15.83

vintage small Lamp for Science ---Glass lamp w metal cap some corrosion as shown

$ 39.89 $ 23.93

Collection of 10 Chenopodiaceae (Amaranth) Family Pollen Microscope Slides

$ 101.2 $ 60.72

Altered Dolerite with Epidote from Isle of Mull Petrographic Microscope Slide

$ 57.2 $ 34.32

Philadelphite from Philadelphia Pennsylvania Microscope Slide

$ 41.8 $ 25.08

Wavellite from Filleigh Devon Petrographic Microscope Slide

$ 39.6 $ 23.76

VINTAGE 220 VOLT KNIFE SWITCH - STEAMPUNK

$ 11.43 $ 6.85

Antique WILLIAMS BROWN & EARLE, PHILA. Standard Boiler Smoke Tester

$ 60.28 $ 36.16

Antique Trippensee Planetarium, Orrery, Tellurium, Solar System, Globe, Sun

$ 3432 $ 2059.19

1900s Austria Leopolder&Sohn Vienna Brass Glass Telegraph Galvanometer Compass

$ 219.99 $ 131.99

VINTAGe TWIN EBULLIOMETER WINE LIQUID BOILING POINT METEr

$ 396 $ 237.6

Antique Edison Era Grenet Battery Replica

$ 119.24 $ 71.54

Antique WELCH Scientific Company Electric Motor Type Instrument RARE

$ 66 $ 39.6

RARE HERTEL & REUSS Sohnges Optik Germany Aldon Opera Glasses Binoculars

$ 21.12 $ 12.67

Vintage Hoyt Meter DC Amperes Amp Gauge 2.5” Size - Super Nice

$ 16.5 $ 9.9

Gear Reduction Demonstration, 16:1 Ratio, Central Scientific Company circa 1900

$ 43.95 $ 26.37

Vintage Antique 7" Industrial GENERAL ELECTRIC DC Ampere Meter 100 to 3,000 amp

$ 351.72 $ 211.03

Macaloster Scientific Michelson Interferometer Vintage

$ 26.4 $ 15.83

Antique Trumbull Double Pole Single Switch 60 AMP 250 V DC-AC / Steampunk

$ 26.4 $ 15.83

Turret device (4 lenses) of a microscope PZO (Biolar, MB30)

$ 13.15 $ 7.89

ANTIQUE EBERBACH & SON'S CO.SCIENTIFIC RESISTOR TESTING UNIT,TONGUE & GROOVE BOX

$ 66.88 $ 40.12

Antique Railroad Telegraph Transmitter

$ 1003.2 $ 601.91

Collection of 18 Fagaceae (Oak and Beech) Family Pollen Microscope Slides

$ 198 $ 118.8

Antique Eimer & Amend Paper Label Precision Tool Instruments Scales importes NY

$ 0.88 $ 0.52

antique brass gauge mil-ammeter (frank s.betz co/jewell inst co-standard)

$ 118.8 $ 71.28

Hall's patent pedulum postal scale 1895 gilt brass

$ 37.24 $ 22.34

Antique Adams Densimeter from Stowe & Woodward Co.

$ 56.27 $ 33.76

Antique Pyrometer by The Brown Instrument Company

$ 39.6 $ 23.76

Wagner Electric Mfg Co St. Louis MO D.C. Ammeter Vintage Electrical Instrument

$ 99.42 $ 59.65

Model 281 Industrial Antique Weston Electrical Instruments Volt Meter Bakelite

$ 35.15 $ 21.09

Antique PENN Thermostat TYCOS Brass Front Early Electrical Devise Des Moines IA

$ 57.2 $ 34.32

SPIRIT LEVEL, TEMPERATURE LEVEL, ANTIQUE TOOL. 1880, PATENTED DESIGN. ENGLISH

$ 96.8 $ 58.08

RARE 1920s ANTIQUE HEMCO CONVENIENT OUTLETS BROCHURE WITH COLORFUL ILLUSTRATIONS

$ 18.47 $ 11.08

VINTAGE MEDICAL HAUSSER SCIENTIFIC COUNTING CHAMBER CAT. NO.100 BATCH #20 In Box

$ 6.16 $ 3.69

Antique Microscope (Insects/Bugs) Made In France

$ 26.39 $ 15.83

Antique Electric Knife Switch White Porcelain Base 3058 Small 2 1/16" X 3 7/8"

$ 52.8 $ 31.67

Ford Model T Wood Battery Box Ignition Coil Antique Rustic Car Decor Display

$ 26.39 $ 15.83

Human Histology Microscope Slides (B)

$ 26.4 $ 15.83

Vintage Weston Electrical DC Ammeter Wooden Box 45 Steampunk Antique Gauge 1942

$ 43.99 $ 26.39

VERY LIMITED EDITION Ca. 1890s OTTO SLIDE VALVE GAS ENGINE WORKS PA CATALOG

$ 11 $ 6.6

RARE 1923 ANTIQUE F-F FRANCE MFG BATTERY CHARGER BROCHURE CLEVELAND OH LIBERTY

$ 17.59 $ 10.55

VINTAGE THOMAS A EDISON BSCO PRIMARY BATTERY APRIL 4 1911 JAR LID ONLY

$ 30.77 $ 18.46

Vintage Leeds & Northrup Reflecting Galvanometer

$ 51.92 $ 31.15

Antique Weston Model 301 Round Panel Meter ~ 0-20 Milliamps DC ~ Parts or Repair

$ 13.19 $ 7.91

Common Liver Fluke (Fasciola hepatica) Whole Mount Microscope Slide

$ 17.6 $ 10.56

Vintage Keleket Xray Machine Wire Spools Covington KY USA Antique Electrical

$ 24.64 $ 14.78

Vintage SOLO Adding Machine Old Japan With Dust Cover + box + instructions

$ 51.91 $ 31.14

Human Penetrating Atherosclerotic Ulcer Aorta Pathology Microscope Slide

$ 22 $ 13.2

Collection of 4 Myristicaceae (Nutmeg) Family Pollen Microscope Slides

$ 26.4 $ 15.83

Antique French Binoculars Opera Reading Magnifier Laryngeoscope Compass Tool t14

$ 35.15 $ 21.09

VINTAGE JEWELL VOLT METER 0-50 WINGED INSIGINA GAUGE MADE IN USA

$ 7.03 $ 4.21

Rare Torricelli founder o Hydrodynamics antique Theorem Demonstration Apparatus

$ 220 $ 132

Ashcroft PSI Water 100 Inches Equipment gauge Meter Vintage 1956

$ 25.37 $ 15.22

Camptonite from Cataclews Quarry N. Cornwall Petrographic Microscope Slide

$ 22 $ 13.2

Human Palatine Tonsil Histology Microscope Slide

$ 8.8 $ 5.28

Collection of 6 Zygophyllaceae (Caltrop) Family Pollen Microscope Slides

$ 79.2 $ 47.52

Adv. Trade Card Draper's Self-Recording Hygrometer c1910

$ 66 $ 39.6

Antique Northrup LN Model 7 Deflection Potentiometer

$ 263.99 $ 158.39

Extremely Rare 18th Century Scale Box In Nicely Painted Vernis Martin Box

$ 1232 $ 739.2

Antique London 1709 Brass Mother of Pearl Fahrenheit/Reaumur Desk Thermometer

$ 154 $ 92.4

Antique BRYANT Electric Knife Switch Small Mounted On Slate Base-3 1/8" X 3 1/4"

$ 44 $ 26.4

Botany Microscope Slides (E)

$ 26.4 $ 15.83

Antique Frank Adams 3-Wire Knife Disconnect Switch Slate Base Steampunk

$ 63.36 $ 38.01

Foraminifera in Limestone from Chattanooga Microscope Slide

$ 28.6 $ 17.16

antique JSF Huddleston, Boston salt scale

$ 44 $ 26.4

1895 Henry Weinhagen Hyrometers,Thermometers MFG.,PICTURE GRAPHIC Letterhead!

$ 43.99 $ 26.39

Solid Brass Pocket Compass Marine Antique British Military Prismatic Solid Gift

$ 32.56 $ 19.53

Antique TRUMBULL T Electric Knife Switch Small w Porcelain Base 12-21 #709 USA

$ 14.94 $ 8.96

RARE Antique G.M. PHELPS - WESTERN UNION TELEGRAPH CO. Telegraph Register

$ 8.79 $ 5.27

Antique Vintage GO-DEVIL - A.H. EMERY POUGHKEEPSIE, N.Y. Telegraph Key Bug

$ 8.79 $ 5.27

Antique MECOGRAPH CO. CLEVELAND Telegraph Key with Box - "TIGER STRIPE" Finish

$ 8.79 $ 5.27

Antique Telegraph Fire Alarm Mushroom Bell Tapper

$ 8.79 $ 5.27

Antique 1880's C.E. JONES & BRO. Telegraph, Telephone & Electrical Catalog

$ 8.79 $ 5.27

Antique Vintage Cast Iron Motor with Original Paint and Pinstriping

$ 8.79 $ 5.27

Antique Electric DC Motor "LITTLE HUSTLER" With on and off switch

$ 96.8 $ 58.08

Old Large Frankenstein Westinghouse Copper Knife Switch SteamPunk 60Amp 250v

$ 4.39 $ 2.63

Vintage Hoyt Meter DC Amperes Amp Gauge 2.5” Size - Super Nice

$ 8.75 $ 5.25

RARE HERTEL & REUSS SOHNGES OPTIK GERMANY ALDON OPERN OPERA GLASSES BINOCULARS

$ 105.55 $ 63.33

1895 Henry Weinhagen Hyrometers,Thermometers MFG.,PICTURE GRAPHIC Letterhead!

$ 43.99 $ 26.39

1880 Box Antique Thomas A. Edison's No.1 Mimeograph A.B Dick Company Chicago

$ 121.95 $ 73.17

Sears Power 50 -1200x Zoom Scientific Microscope in Wooden Box

$ 99 $ 59.4

Psychopathia Sexualis by R. Krafft 1898 German Language

$ 26.39 $ 15.83

Vintage Rare Robertson Steam Engine Indicator w/ Case - Circa 1900

$ 242 $ 145.19