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Antique Electrical Blue Print Diagram early 1900's ? Technical School Scientific

$ 74.8 $ 44.88

Weston Model 45 D.C. Voltmeter

$ 105.6 $ 63.35

Baird & Tatlock Brass Weights Wooden Box Antique Scientific Equipment

$ 89.25 $ 53.55

Vintage Sargent Welch S-30867 Analog DC Volt Meter 0-7.5v 0-150v DC M12

$ 17.59 $ 10.55

ANTIQUE MEASURING INSTRUMENT E. KRAFT & SOHN

$ 105.51 $ 63.3

Antique Ritter MILLIAMP METER Excellent condition

$ 35.19 $ 21.11

Vintage Small Pocket Compass - Bavaria - Mirrored Back - Free Shipping

$ 13.19 $ 7.91

Antique 1880's The Davidson Syringe Case Box with Advertising and Working Clasps

$ 15.84 $ 9.5

Antique Primitive VTG 4 Tube Cream Separator Tester Dairy Facile 1903 Centrifuge

$ 1062.16 $ 637.29

1pc Mini Compass Compact Golden Copper Luminous Pocket Compass Camping Tool

$ 8.43 $ 5.06

Cat Meningioma of the Brain Pathology Microscope Slide

$ 22 $ 13.2

Collection of 9 Annonaceae (Custard Apple) Family Pollen Microscope Slides

$ 26.4 $ 15.83

CA 1904 LETTERHEAD W. L. BLAKE & CO PORTLAND ME STEAM STEAMSHIP RAILROAD ENGINE

$ 26.35 $ 15.81

1889 FITCHBURG STEAM ENGINE CO BOILERS CLUTCHES GROTON MA GAPHIC LETTERHEAD

$ 35.15 $ 21.09

1893 WC JOHNSON PORTABLE STEAM ENGINES MILL FITCHBURG TOWNSEND MA SIGNED

$ 43.99 $ 26.39

EARLY ANTIQUE 6 DRAW / PULL SPYGLASS MONOCULAR SILVER PLATED POCKET TELESCOPE

$ 396 $ 237.6

Rare Antique German Alcohol Meter in Original 3 Piece Case c.1890

$ 523.6 $ 314.16

Antique Weston D.C. Ammeter Model 45 Dated OCT. 24 1928 ~ Over 90 Year Old RARE!

$ 118.79 $ 71.27

Rare Vintage H.B Instruments Company Hydrometer -Philadelphia Pa. Original Case

$ 61.59 $ 36.95

Mammalian Histology Microscope Slides (C)

$ 26.4 $ 15.83

LEEDS & NORTHRUP Galvanometer Scientific Instrument Bakelite Steampunk Made USA

$ 61.59 $ 36.95

Collection of 4 Flacourtiaceae Family Pollen Microscope Slides

$ 22 $ 13.2

1963 1964 1968-69 bicentennial US Coin proof sets

$ 70.39 $ 42.23

✅ MONOCULAR TELESCOPE FRENCH LARGE OCULAR EYEPIECE ORIGINAL ANTIQUE BRASS 1800’S

$ 133.58 $ 80.15

LOMO Microscope Slide Table Bracket POLAM

$ 29.87 $ 17.92

AMMETER 1920s in wooden box

$ 51.92 $ 31.15

U Of M microscope, Great for teens, Durable enough for kids. Perfect finder.

$ 21.12 $ 12.67

Antique c1901 Weston Volts Meter - Cast Iron - steampunk - Model 24 - Newark

$ 132 $ 79.2

Antique Medical Specimen Slicing Kit by Spencer of Buffalo NY Science medicine

$ 22.25 $ 13.35

1897 HANCOCK EQUIPMENT ELECTRICAL CONTRACTORS MOTORS DYNAMOS ELECTRIC BOSTON MA

$ 43.95 $ 26.37

Solid Brass Antique British Military Prismatic Pocket Compass Marine Solid Gift

$ 28.16 $ 16.89

LEEDS & NORTHRUP Self-Inductance Milli-Henrys No. 1301918 Bakelite Steampunk USA

$ 52.79 $ 31.67

Unusual ANTIQUE c1913 HANDLE Form Pat'd FRANK J CURRY Photograph PRINTING FRAME

$ 88 $ 52.8

Antique L-F VOLTAGE METER

$ 43.99 $ 26.39

Mammalian Histology Microscope Slides (B)

$ 26.4 $ 15.83

Mammalian Histology Microscope Slides (D)

$ 26.4 $ 15.83

Vintage 1930s Collectors Item, Smith & Corona USA Mechanical Calculating Machine

$ 132 $ 79.2

Vintage Welch 3081Q Analog AC Milliamp Meter 0-250mA AC Bakelite Free Ship #M5

$ 23.75 $ 14.25

VINTAGE MEDICAL HEMACYTOMETER UNIVERSAL A. HECHTEL COUNTING CHAMBER

$ 8.75 $ 5.25

Vorticella Microscope Slide

$ 8.8 $ 5.28

Antique C. Forschner's Balance No. 2 New York 1900 24lb. Hanging Metal Scale

$ 8.79 $ 5.27

✅ FRENCH LARGE LENS ORIGINAL ANTIQUE BRASS MONOCULAR TELESCOPE 1800’S

$ 187.01 $ 112.21

ANTIQUE MEDICAL HEMACYTOMETER SPENCER BRIGHT-LINE COUNTING CHAMBER

$ 11.39 $ 6.83

Lot Of 25 Pcs Compass For All Directions 45mm Collectible Scientific Instrument

$ 36.96 $ 22.17

Trichodina sp. on lamprey gills Microscope Slide

$ 8.8 $ 5.28

Volt Meter Vintage

$ 31.15 $ 18.69

Conger Eel Amphiuma sp. Lung Microscope Slide

$ 8.8 $ 5.28

19C ANTIQUE WOOD & METAL AGRICULTURAL INSTRUMENT FOR WHEAT SAMPLING TEST

$ 50.16 $ 30.09

Lot of 19x Glass Measuring Cylinders Graduated 5mL to 500mL Lab

$ 288.77 $ 173.26

Antique Hydrometer Wine Scale Instrument 8-3/8" Glass Buy It Now

$ 22 $ 13.2

Iron Hand Crank Standard Tester Milk Dairy Cream Separator Centrifuge Farm Tool

$ 35.19 $ 21.11

Early Spectroscope Apparatus Machine 1915 Ad Trade Card

$ 5.71 $ 3.42

Antique Leeds & Northrup Volt Box No. 7581

$ 88 $ 52.8

Lot Of 100 Pcs Compass For All Directions Collectible Scientific Instrument

$ 114.4 $ 68.64

1902 John Albert Cheape The Expodak Co Chart Celluloid Photo Light Chart T70

$ 25.96 $ 15.57

Conger Eel Amphiuma sp. Pancreas Microscope Slide

$ 8.8 $ 5.28

Vintage Hydrometer For Sugar Braun Knecht Heiman Brix Scale Glass 59-71 Candy

$ 21.12 $ 12.67

Collection of 3 Balsaminaceae Family Pollen Microscope Slides

$ 13.2 $ 7.91

1893 WC JOHNSON PORTABLE STEAM ENGINES MILL FITCHBURG TOWNSEND MA SIGNED

$ 43.99 $ 26.39

1897 FITCHBURG MACHINE WORKS LETTERHEAD METAL WORKING MACHINERY MASSACHUSETTS

$ 43.99 $ 26.39

Jackson Mississippi Brewer Equipment & Supply Temperature Gauge Vintage

$ 26.39 $ 15.83

1896 GEO MCLAUGHLIN MFG STEAM POWER PLANTS ENGINES ACME OIL BOSTON TOWNSEND MA

$ 65.95 $ 39.57

1897 SL HOLT CO STEAM ENGINE MAKERS ENGINES BOILERS MACHINERY BOSTON TOWNSEND MA

$ 26.35 $ 15.81

- MA130-0025 Magnetic Compass, 25mm Diameter

$ 11.46 $ 6.87

Indoor Antenna - Old - Vintage - Antenna

$ 51.7 $ 31.02

SCARCE ANTIQUE SCHULTZ ELECTRIC EQUIPMENT CO. BOONE, IOWA 6 VOLT DC TESTING?

$ 351.99 $ 211.19

DWYER INSTRUMENTS 641-12-LED Air Velocity Transmitter

$ 838.32 $ 502.99

1889 FITCHBURG STEAM ENGINE CO FITCHBURG MASS LETTERHEAD

$ 33.88 $ 20.32

1906 FAIRBANKS COMPANY SCALES GAS GASOLINE STEAM RAILWAY ENGINES BOSTON TOWNSEND

$ 35.19 $ 21.11

CA 1903 COLLECTION STURTEVANT STEAM ENGINE BOSTON

$ 21.95 $ 13.17

1897 BOSTON BELTING COMPANY VULCANIZED RUBBER BELTING HOSE STEAM ENGINE RUBBER

$ 26.39 $ 15.83

Antique Hoyt Volts Meter Model 531 Battery Tester

$ 21.56 $ 12.93

Conger Eel Amphiuma sp. Esophaus Microscope Slide

$ 8.8 $ 5.28

1897 CHARLES W PERCY SHIPMAN AUTOMATIC STEAM ENGINES BOSTON MA TOWNSEND

$ 43.99 $ 26.39

Antique Sudbury Soil Testing Kit Clear Acrylic Box With Instructions

$ 35.19 $ 21.11

Vintage Welch 3081E Analog AC Amp Meter 0-3A AC Bakelite Free Ship #M3

$ 23.75 $ 14.25

Collection of 7 Malvaceae (Mallows) Family Pollen Microscope Slides

$ 66 $ 39.6

Antique Victor AC AMMETER

$ 43.99 $ 26.39

1940's - 1950's Chicago Apparatus Company - Blown Glass Hydrometer

$ 17.6 $ 10.56

CHADBURN BROTHERS SHEFFIELD & LIVERPOOL ANTIQUE STICK BAROMETER

$ 1644.03 $ 986.42

Jewell Elec Instrument Co. Volt Meter Gauge Vintage 135 Steampunk Adjust 3 ,2pc

$ 85.36 $ 51.21

Microphone, Possibly F. Voice Recorder, #K-85-23

$ 11.33 $ 6.8

Antique 1500 MARSH Pressure GAUGE-Lapointe Machine Tool Co Hudson Massachusetts

$ 110 $ 66

Strigeidae-metacercaria from Bluegill Liver Microscope Slide

$ 11.44 $ 6.86

Antique CEAG Inspector Lamp Lantern Deep Sea Diver Mining Brass Heavy ORIGINAL

$ 127.6 $ 76.55

Ichthiophthirius in tumor Microscope Slide

$ 8.8 $ 5.28

19thc Antique Brass Telescope Microscope Lens in Housing for Parts Repair

$ 41.14 $ 24.68

Antique HOTPOINT Portable Receptacle Edison Electric GE Appliance w Timer On/Off

$ 127.6 $ 76.55

Vintage Electric Clamp Voltage Meter Steampunk Design

$ 43.95 $ 26.37

RARE 1922 ANTIQUE F-F FRANCE MFG ROTARY RECTIFIER BROCHURE CLEVELAND OHIO SCARCE

$ 17.59 $ 10.55

ANTIQUE BRASS BEAM SCALE - NEEDS PANS, 13 3/4" AS FOUND

$ 18.81 $ 11.28

Clonorchis Sinensis, Human Liver Fluke; Whole-mount by Go Science Crazy

$ 12.04 $ 7.22

NEW! 100PCS Lab Biological Prepared Glass Microscope Slides Educational Specimen

$ 37.63 $ 22.58

Dwyer Instruments 641Rm-12-Led Air Velocity Transmitter,Display Red Led

$ 728.3 $ 436.98

Vintage Lot Bakelite Variable Resistor - Switches Centralab, USA etc.

$ 70.39 $ 42.23

1911 NATIONAL STAMPING AND ELECTRIC WORKS GAS DYNAMOS LAMPS CHICAGO

$ 35.19 $ 21.11

Antique Brass Telescope Lens & Tube Assembly w/ Solar Eyepiece for Parts Repair

$ 67.28 $ 40.37

VINTAGE JULIAN FRIEZ METEORLOGICAL MACHINE --BALTIMORE 1920-30

$ 66 $ 39.6

Antique Thomas A Edison Ediphone Shaver Motor Working 9 Amp Original Cord

$ 219.99 $ 131.99

Antique Distillers WB Mash Tester Hydrometer & Germany 12” Cylinder Beaker

$ 57.2 $ 34.32