Antique & Vintage Scientific & Medical Objects for Sale in Online Auctions

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EDSON'S PRESSURE RECORDING AND ALARM GAUGE New York, Late 19th Century Height not including brackets: EDSON'S PRESSURE RECORDING AND ALARM GAUGE New York, Late 19th Century Manufactured by Ashcroft Mfg. Co. Patent date December 23, 1890. Retains two original labels. Includes added wall mounting bracke

2026

EDSON'S PRESSURE RECORDING AND ALARM GAUGE New York, Late 19th Century Height not including brackets

Eldred'sHanover, MA

SIEMENS BROS. ASTATIC GALVANOMETER London, Late 19th/Early 20th Century Total height 3.5". Length: SIEMENS BROS. ASTATIC GALVANOMETER London, Late 19th/Early 20th Century Silvered dial with engraved maker's mark. Mounted on an oak base. Total height 3.5". Length 7.5". Width

2026

SIEMENS BROS. ASTATIC GALVANOMETER London, Late 19th/Early 20th Century Total height 3.5". Length

Eldred'sHanover, MA

GOLD FOIL ELECTROSCOPE Late 19th/Early 20th Century Max height approx. 12". Base diameter 4".: GOLD FOIL ELECTROSCOPE Late 19th/Early 20th Century Used to detect the presence of charge but not the potential associated with the charge. Height adjustable. Unmarked. Max height approx. 12". Base di

2026

GOLD FOIL ELECTROSCOPE Late 19th/Early 20th Century Max height approx. 12". Base diameter 4".

Eldred'sHanover, MA

CASED TROUGHTON & SIMMS BRASS CIRCULAR PROTRACTOR London, Mid-19th Century Dial diameter 8.25". Case: CASED TROUGHTON & SIMMS BRASS CIRCULAR PROTRACTOR London, Mid-19th Century Rack and pinion adjuster. Inset silvered degree scale. Original fitted mahogany case. Dial diameter 8.25". Case height 2.25".

2026

CASED TROUGHTON & SIMMS BRASS CIRCULAR PROTRACTOR London, Mid-19th Century Dial diameter 8.25". Case

Eldred'sHanover, MA

CASED BAUSCH & LOMB BRASS MICROSCOPE New York, Late 19th Century Cased height 14". Width 8.5". Depth: CASED BAUSCH & LOMB BRASS MICROSCOPE New York, Late 19th Century Marked for maker on base. Cased height 14". Width 8.5". Depth 8.5".

2026

CASED BAUSCH & LOMB BRASS MICROSCOPE New York, Late 19th Century Cased height 14". Width 8.5". Depth

Eldred'sHanover, MA

CASED WESTPHAL SPECIFIC GRAVITY BALANCE SCALE Gemany, Early 20th Century Case height 3". Width: CASED WESTPHAL SPECIFIC GRAVITY BALANCE SCALE Gemany, Early 20th Century Used to determine the specific gravity of liquids. Unmarked but believed to be a Westphal Balance No. 689, circa 1910. Stamped

2026

CASED WESTPHAL SPECIFIC GRAVITY BALANCE SCALE Gemany, Early 20th Century Case height 3". Width

Eldred'sHanover, MA

VACUUM AIR PUMP, POSSIBLY BY JACQUES BABINET France, Late 19th Century Height 19". Length 16". Width: VACUUM AIR PUMP, POSSIBLY BY JACQUES BABINET France, Late 19th Century Apparatus also associated with Adolphe Ganot. Adjustment knob marked "Babinet", "Ferme" and "Simple", otherwise unmarked. Height

2026

VACUUM AIR PUMP, POSSIBLY BY JACQUES BABINET France, Late 19th Century Height 19". Length 16". Width

Eldred'sHanover, MA

ELECTROSTATIC EGG Germany, Late 19th Century Height 25.5".: ELECTROSTATIC EGG Germany, Late 19th Century Shows the effects of electrical discharges in rarefied gases. Unmarked but believed to be #22518 in the Max Kohl, Chemnitz catalog, described as "Elektrisc

2026

ELECTROSTATIC EGG Germany, Late 19th Century Height 25.5".

Eldred'sHanover, MA

UNIVERSAL MULTI-NEBULAR VAPORIZER Late 19th Century Height 11". Width 12". Depth approx. 11".: UNIVERSAL MULTI-NEBULAR VAPORIZER Late 19th Century Believed to have been manufactured by Globe Manufacturing Co., Battle Creek, Michigan. Patent date September 27, 1892, probably no. 483,435. Central

2026

UNIVERSAL MULTI-NEBULAR VAPORIZER Late 19th Century Height 11". Width 12". Depth approx. 11".

Eldred'sHanover, MA

NEWTON & CO. ELECTROSTATIC MACHINE London, Mid-19th Century Height 24". Length 20". Width 18".: NEWTON & CO. ELECTROSTATIC MACHINE London, Mid-19th Century Generates high-voltage static electricity for use in researching electrical phenomena. Includes a Leyden Jar, bells, battery and other attac

2026

NEWTON & CO. ELECTROSTATIC MACHINE London, Mid-19th Century Height 24". Length 20". Width 18".

Eldred'sHanover, MA

R. KERSHAW ASTATIC THOMSON MIRROR GALVANOMETER Leeds, England, Late 19th Century Height 19".: R. KERSHAW ASTATIC THOMSON MIRROR GALVANOMETER Leeds, England, Late 19th Century Marked "R. Kershaw Leeds". Height 19".

2026

R. KERSHAW ASTATIC THOMSON MIRROR GALVANOMETER Leeds, England, Late 19th Century Height 19".

Eldred'sHanover, MA

J.H. BUNNELL GALVANOMETER New York, Late 19th Century Height 3.5". Diameter 8".: J.H. BUNNELL GALVANOMETER New York, Late 19th Century Intended to be used with the Wheatsone Bridge. Height 3.5". Diameter 8".

2026

J.H. BUNNELL GALVANOMETER New York, Late 19th Century Height 3.5". Diameter 8".

Eldred'sHanover, MA

ELLIOTT BROS. ASTATIC MOVING MAGNET REFLECTING GALVANOMETER WITH CASE London, Late 19th/Early 20th: ELLIOTT BROS. ASTATIC MOVING MAGNET REFLECTING GALVANOMETER WITH CASE London, Late 19th/Early 20th Century Serial #987. Engraved maker's mark on the base plate. Red painted wood case with stamp on the

2026

ELLIOTT BROS. ASTATIC MOVING MAGNET REFLECTING GALVANOMETER WITH CASE London, Late 19th/Early 20th

Eldred'sHanover, MA

FIVE ELECTRICITY-RELATED DEVICES Late 19th/Early 20th Century: FIVE ELECTRICITY-RELATED DEVICES Late 19th/Early 20th Century 1) Volt meter on a mahogany stand. Height 9". 2) Hair-spring torsion ammeter, likely Austrian. Height 5.75". 3) Condenser capacitor with l

2026

FIVE ELECTRICITY-RELATED DEVICES Late 19th/Early 20th Century

Eldred'sHanover, MA

BRONZE TELEGRAPH RECEIVER Late 19th Century Height 8". Width 11". Depth 10".: BRONZE TELEGRAPH RECEIVER Late 19th Century Unmarked but believed to be Siemens Fabrik, St. Petersburg, Russia. Serial #26454. Slide-out compartment contains the paper roll. Height 8". Width 11". Dept

2026

BRONZE TELEGRAPH RECEIVER Late 19th Century Height 8". Width 11". Depth 10".

Eldred'sHanover, MA

CASED ASHCROFT MANUFACTURING CO. LINEAR PLANIMETER New York, Late 19th Century Case height 3". Width: CASED ASHCROFT MANUFACTURING CO. LINEAR PLANIMETER New York, Late 19th Century Patented by J. Coffin as an "Averageometer", used for measuring the average breadth of irregular planes. Serial #1706. Pa

2026

CASED ASHCROFT MANUFACTURING CO. LINEAR PLANIMETER New York, Late 19th Century Case height 3". Width

Eldred'sHanover, MA

PERRET CONTINUOUS CURRENT DYNA-MOTOR BY ELEKTRON MFG. CO. Springfield, Massachusetts, Late 19th: PERRET CONTINUOUS CURRENT DYNA-MOTOR BY ELEKTRON MFG. CO. Springfield, Massachusetts, Late 19th Century Marked on plaque "Perret's Patent May 14, 1889 No. 1486 Volts 100 [...]". Mounted on a wood base

2026

PERRET CONTINUOUS CURRENT DYNA-MOTOR BY ELEKTRON MFG. CO. Springfield, Massachusetts, Late 19th

Eldred'sHanover, MA

JOST'S PATENT RADIO FAN WITH STIRLING ENGINE Germany, Early 20th Century Height 38". Cage diameter: JOST'S PATENT RADIO FAN WITH STIRLING ENGINE Germany, Early 20th Century Serial #24381. Stirling engine powered by heat from a kerosene lamp. Labeled "Jost's Patent Radio Fan". Height 38". Cage diamet

2026

JOST'S PATENT RADIO FAN WITH STIRLING ENGINE Germany, Early 20th Century Height 38". Cage diameter

Eldred'sHanover, MA

CROCKER-WHEELER BIPOLAR DIRECT-CURRENT ELECTRIC MOTOR New Jersey, Late 19th Century Total height: CROCKER-WHEELER BIPOLAR DIRECT-CURRENT ELECTRIC MOTOR New Jersey, Late 19th Century Marked on bronze plaque "Crocker-Wheeler Electric Co. Ampere, N.J. U.S.A. 1/4 H.P. Size 1/4 C Pat'd May 5, 1891 and

2026

CROCKER-WHEELER BIPOLAR DIRECT-CURRENT ELECTRIC MOTOR New Jersey, Late 19th Century Total height

Eldred'sHanover, MA

CASED F.G. OTTO & SONS "THE FLORENCE" WET CELL BATTERY New York, Circa 1890 Case height 6.5".: CASED F.G. OTTO & SONS "THE FLORENCE" WET CELL BATTERY New York, Circa 1890 Serial #11719. Patent date August 18, 1885 by Whitall, Tatum & Co. Case height 6.5".

2026

CASED F.G. OTTO & SONS "THE FLORENCE" WET CELL BATTERY New York, Circa 1890 Case height 6.5".

Eldred'sHanover, MA

CRANK-OPERATED WHEEL AND GEAR CUTTING ENGINE Likely Switzerland, Mid-19th Century Height 14". Width: CRANK-OPERATED WHEEL AND GEAR CUTTING ENGINE Likely Switzerland, Mid-19th Century Brass, iron and steel. Engraved "T. Crom" on one side and "T.R.C." in tiny lettering on the other. Mounted on an oak o

2026

CRANK-OPERATED WHEEL AND GEAR CUTTING ENGINE Likely Switzerland, Mid-19th Century Height 14". Width

Eldred'sHanover, MA

LEATHER-WRAPPED REFLECTING TELESCOPE ON A FOLDING BRASS TRIPOD Early 19th Century Collapsed height: LEATHER-WRAPPED REFLECTING TELESCOPE ON A FOLDING BRASS TRIPOD Early 19th Century Unmarked. Collapsed height approx. 14". Tube length 14.5".

2026

LEATHER-WRAPPED REFLECTING TELESCOPE ON A FOLDING BRASS TRIPOD Early 19th Century Collapsed height

Eldred'sHanover, MA

CASED NEWTON & CO. DEMONSTRATION GYROSCOPE England, Late 19th Century Gyroscope height approx. 9".: CASED NEWTON & CO. DEMONSTRATION GYROSCOPE England, Late 19th Century Lacquered brass gyroscope engraved with maker's mark and address on base. Walnut or cherry case. Includes two weights. Gyroscope h

2026

CASED NEWTON & CO. DEMONSTRATION GYROSCOPE England, Late 19th Century Gyroscope height approx. 9".

Eldred'sHanover, MA

CASED ALFRED APPS INDUCTION COIL London, Late 19th Century Case height 10". Width 19". Depth 11".: CASED ALFRED APPS INDUCTION COIL London, Late 19th Century Detect magnetization. Labeled "1327 APPS 433 Strand London Patented 1881 - 264". Case height 10". Width 19". Depth 11".

2026

CASED ALFRED APPS INDUCTION COIL London, Late 19th Century Case height 10". Width 19". Depth 11".

Eldred'sHanover, MA

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