Raphael Scientific And Medical Objects

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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

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

TWO THERMOPILE DEVICES Late 19th Century Heights 8.5" and 9".: TWO THERMOPILE DEVICES Late 19th Century Used to convert thermal energy into electrical energy.?Both unmarked, although the larger is believed to be a Melloni Thermopile Professional Model. Both lacqu

2026

TWO THERMOPILE DEVICES Late 19th Century Heights 8.5" and 9".

Eldred'sHanover, MA

TWO WATCHMAKER'S LATHES Likely Germany, Late 19th Century Heights 9" and 10.5".: TWO WATCHMAKER'S LATHES Likely Germany, Late 19th Century One rounding-up lathe, other possibly is as well. Both apparently unmarked. One mounted to a one-drawer wood base, which contains nine extra b

2026

TWO WATCHMAKER'S LATHES Likely Germany, Late 19th Century Heights 9" and 10.5".

Eldred'sHanover, MA

AN ELECTRIC CURRENT METER AND A RESISTANCE BOX Late 19th/Early 20th Century: AN ELECTRIC CURRENT METER AND A RESISTANCE BOX Late 19th/Early 20th Century 1) "System Weston Ampere" by Weston Electrical Instrument Co., Newark, New Jersey. Measures direct or alternating electric c

2026

AN ELECTRIC CURRENT METER AND A RESISTANCE BOX Late 19th/Early 20th Century

Eldred'sHanover, MA

TWO-PART GAS BURNER AND A CASED SIKE'S HYDROMETER: TWO-PART GAS BURNER AND A CASED SIKE'S HYDROMETER 1) Gas burner patent dates February 6, 1883 and March 8, 1892, no. 272,004. Length 7.5". 2) Hydrometer by Buss of London. Case height 2". Width 5". De

2026

TWO-PART GAS BURNER AND A CASED SIKE'S HYDROMETER

Eldred'sHanover, MA

LACQUERED AND PAINTED BRASS SPECTROSCOPE Germany, Late 19th Century Height approx 18". Width approx.: LACQUERED AND PAINTED BRASS SPECTROSCOPE Germany, Late 19th Century Used for the analysis of chemicals and pharmaceuticals, fixed either vertically or horizontally. Likely manufactured by Max Kohl cir

2026

LACQUERED AND PAINTED BRASS SPECTROSCOPE Germany, Late 19th Century Height approx 18". Width approx.

Eldred'sHanover, MA

RANDALL & STICKNEY THICKNESS GAUGE MICROMETER Waltham, Massachusetts, Late 19th Century Height 8".: RANDALL & STICKNEY THICKNESS GAUGE MICROMETER Waltham, Massachusetts, Late 19th Century Patent date August 21, 1883. Maker's mark and patent date on dial. Cast iron base under original paint and with

2026

RANDALL & STICKNEY THICKNESS GAUGE MICROMETER Waltham, Massachusetts, Late 19th Century Height 8".

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

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

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 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

FOUR ELECTRICITY METERS Late 19th/Early 20th Century: FOUR ELECTRICITY METERS Late 19th/Early 20th Century 1) Thomson Ammeter by General Electric Co. Copper finish. Diameter 7.25". 2) Thomason Alternating Ammeter. Patent dates July 16, 1895 and May 26, 1

2026

FOUR ELECTRICITY METERS Late 19th/Early 20th Century

Eldred'sHanover, MA

NAUDET ET CIE BAROGRAPH France, Late 19th/Early 20th Century Case height 6.75". Width 11.5". Depth: NAUDET ET CIE BAROGRAPH France, Late 19th/Early 20th Century Within a mahogany and glass case with hinged lid. Engraved maker's mark "P.N.H.B.". Stamped "96". Case height 6.75". Width 11.5". Depth 5.7

2026

NAUDET ET CIE BAROGRAPH France, Late 19th/Early 20th Century Case height 6.75". Width 11.5". Depth

Eldred'sHanover, MA

CROSBY STEAM GAUGE & VALVE CO. PORTABLE STEAM ENGINE RECORDER Boston, Late 19th Century Case height: CROSBY STEAM GAUGE & VALVE CO. PORTABLE STEAM ENGINE RECORDER Boston, Late 19th Century Measures the pressure of steam. Patent date September 2, 1879, no. 219,249 and September 5, 1882, no. 263,843. E

2026

CROSBY STEAM GAUGE & VALVE CO. PORTABLE STEAM ENGINE RECORDER Boston, Late 19th Century Case height

Eldred'sHanover, MA

SIR WILLIAM THOMSON'S QUADRANT ELECTROMETER BY JAMES WHITE Glasgow, Late 19th Century Height 13.5".: SIR WILLIAM THOMSON'S QUADRANT ELECTROMETER BY JAMES WHITE Glasgow, Late 19th Century Marked "J. White, Glasgow" and "Lord Kelvin's Quadrant Electrometer No. 186". Height 13.5". Width approx. 11". Dep

2026

SIR WILLIAM THOMSON'S QUADRANT ELECTROMETER BY JAMES WHITE Glasgow, Late 19th Century Height 13.5".

Eldred'sHanover, MA

ANDREW J. LLOYD CO. TABLETOP DUAL (MIN-MAX) THERMOMETER Boston, Late 19th Century Height 4.75".: ANDREW J. LLOYD CO. TABLETOP DUAL (MIN-MAX) THERMOMETER Boston, Late 19th Century Engraved bone degree scale mounted on a mahogany stand. Contains mercury and cannot be shipped as-is. Height 4.75". Le

2026

ANDREW J. LLOYD CO. TABLETOP DUAL (MIN-MAX) THERMOMETER Boston, Late 19th Century Height 4.75".

Eldred'sHanover, MA

CASED BAUSCH & LOMB MICROSCOPE New York, Early 20th Century Case height 15". Width 8.25". Depth: CASED BAUSCH & LOMB MICROSCOPE New York, Early 20th Century Patent date January 5, 1915. Marked "One Int. 0.0025mm". Labeled for retailer Arthur M. Thomas and Williams, Brown & Earle. Includes five ex

2026

CASED BAUSCH & LOMB MICROSCOPE New York, Early 20th Century Case height 15". Width 8.25". Depth

Eldred'sHanover, MA

BRASS READING TELESCOPE WITH TRIPOD BASE America, Late 19th Century Height 11.5". Tripod base: BRASS READING TELESCOPE WITH TRIPOD BASE America, Late 19th Century Unmarked but likely manufactured by James W. Queen & Co., Philadelphia. Used with reflecting galvanometers and particularly useful t

2026

BRASS READING TELESCOPE WITH TRIPOD BASE America, Late 19th Century Height 11.5". Tripod base

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

Ultrasonic Electric Dental Scaler *sealed*: Ultrasonic Electric Dental Scaler *sealed*

2026

Ultrasonic Electric Dental Scaler *sealed*

Emanon Auctions and Estate SalesKeyport, NJ

Ultrasonic Electric Dental Scaler *sealed*: Ultrasonic Electric Dental Scaler *sealed*

2026

Ultrasonic Electric Dental Scaler *sealed*

Emanon Auctions and Estate SalesKeyport, NJ

Ultrasonic Electric Dental Scaler *sealed*: Ultrasonic Electric Dental Scaler *sealed*

2026

Ultrasonic Electric Dental Scaler *sealed*

Emanon Auctions and Estate SalesKeyport, NJ

My Smile Portable Oral Irrigator *sealed*: My Smile Portable Oral Irrigator *sealed*

2026

My Smile Portable Oral Irrigator *sealed*

Emanon Auctions and Estate SalesKeyport, NJ

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