Scientific Instruments
scientific instruments — pre-owned
Browse 40 scientific instruments — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

E LEITZ WETZLAR VINTAGE PETROGRAPHIC POLARIZING MICROSCOPE W/CASE & ACCYS - 1934
In addition, petrographic microscopes are much more complicated than biological microscopes. Don't miss this opportunity to add this excellent German-made Leitz petrographic polarizing microscope to your collection!

Central Scientific CENCO Michelson Interferometer Vintage
Central Scientific Cenco Vintage Michelson interferometer Condition is "Used". Shipped with USPS Parcel Select Ground. The Michelson interferometer (invented by the American physicist Albert A. Michelson, 1852–1931) is a precision instrument that produces interference fringes by splitting a light beam into two parts and then recombining them after they have traveled different optical paths.

WESTERN ELECTRIC ~ WILLIAMS ~ BELL TELEPHONE ~ EDISON ~ TELEGRAPH ~ 1870S RARE

Vintage 20th C ENGLISH Style Mahogany CONCH SHELL Inlaid BAROMETER
Size is impressive 40.5” tall x 10.75” wide. This will be a nice touch of elegance in any traditional or mid-century modern setting.
You save $75.00

Minature Bunsen Burner - Old & Collectable
Here we have what I think is an old miniature Bunson burner. See the pictures and decide for yourself what this is and what it is used for. So, I am guessing this is about 100 years old.

ANTIQUE SCHATZ BAROMETER GLASS WITH POINTER
Used item, signs of use. Antique Dutch clock parts shall have no responsibility for any error or omission. We also overhaul gravity clocks and all other clockworks. It doesn't hurt to ask what we can do for you!

Antique Bausch & Lomb Optical Company Brass Microscope 23243 w/ Lenses in Box

Antique NOS Brass Mechanical Auburndale Thermometer Replacement Spring Part
Here is a recent estate find. This Might Be What You have Been Looking For! This is Estate Fresh, Sold As Found! Don't pass this one up, What you see pictured is what is included!

ANTIQUE RARE WOODEN TYPEWRITER KEYBOARD TYPING PRACTICE SEE
Predating the widespread use of electric typewriters and personal computers, such devices were essential training tools for students and clerks aiming to master the speed and accuracy of the QWERTY keyboard layout without the need for a functioning typewriter, ink, or paper.

VINTAGE ORIGINAL c1900 SCIENTIFIC INSTRUMENT TUNING FORK CHICAGO SUPPLY CO.
CHICAGO, ILL.

ANTIQUE CARL ZEISS MILITARY ARTILLERY GONIOMETER FOR THE ARGENTINIAN ARMY WORKS
Manufacturer: Carl Zeiss Jena (The world-renowned German optical firm). Condition: Excellent antique condition.

Newport 855C Programmable Controller 4 Axis Motion Driver IEEE-488 Powers On
Manufacturer: Newport Corporation (Fountain Valley, CA). From an MIT, Draper Laboratory estate here in New England.

Antique Steam Engine Oilers & Valves Industrial Art Wall Hanging Wood Display
Antique Steam Engine Oilers & Valves Display Board Size: 20.75" x 11" Weight: Approximately 8 lbs This antique display features a collection of steam engine oilers, valves, and fittings mounted on a wooden board. The three central pieces are marked Essex Brass Co., Detroit, USA, with the middle one also noting Detroit, Michigan. The shut-off keys on the middle sides are numbered—4 on the left and 3 on the right. Other components do not appear to have visible markings. Condition: Good antique condition with patina and signs of age. The wooden board has minor wear, and the back shows some structural wear near a mounting point (see photos).

Double Illuminated Globe Globe Marco Polo Neumann & Co KG Munich
Old double illuminated globe, Marco Polo. Neumann & Co KG Munich, about 1950-1960. Dimensions: approx. 42x31cm. Bottom diameter: approx. 19cm. Used condition, age-related signs of wear, does not light up (see photos) PHOTOS ARE PART OF THE DESCRIPTION.

VINTAGE GENERAL ELECTRIC RECORDING AMMETER NO. 298 - ALTERNATING CURRENT TYPE CR
IT IS QUITE HEAVY FOR ITS SIZE. I AM NOT EXACTLY CERTAIN WHAT IT WAS USED FOR. THE GLASS IS FULLY INTACT.
You save $120.00

Leitz Leica Angle Finder Winko Black Approx. 1925
From a private collection in the customer order is offered: Leitz, Leica Winkelsucher about 1925-1930. Dimensions: approx. 7.3 x 2.7 cm. Good used condition, age-related signs of wear, function not checked (see photos) Photos are the part of the description.

Antique Dissolving Rheostat - Bausch & Lomb Optical Co. In Cage - Estate
Antique Dissolving Rheostat - Bausch & Lomb Optical Co. Fresh out of an old Maine estate collection.

1922 SARGENT Scientific APPARATUS Catalog GLASSWARE Motors MICROSCOPES Lab GEAR
Large hardbound catalog, 500+ pages. Profusely illustrated, lots of graphics, a very interesting reference.

VINTAGE SMALL LENS - ILEX ANASTIGMAT SERIES "C" F = 6.3 LOOK!
IT IS IN GOOD CONDITION OVERALL THIS IS FOR THE SMALL LENS PICTURED.
You save $25.00

ANTIQUE VINTAGE LOUIS PASTEUR SMALL BRONZE BUST WITH MARBLE BASE

Tektronix PRISM Hopkins Engineering Power Module 350W Rack Vintage Lab Equipment
Maximum Power Output: 350W continuous. This rack-mountable unit originates from the estate of a computer scientist with ties to advanced research facilities. Hopkins Engineering's role as a precision power module supplier to Tektronix underscores the specialized nature of this component.

Vintage 1928 Weston Model 330 AC Voltmeter–Low Serial #10163-Excellent Condition
Based on its lowSerial Number 10163, this unit dates to thelate 1920s (approx. 1928-1929).

Weston Electrical Instrument Corp. Galvanometer Model 440, No. 5294 Vintage
This item is used and untested. It may or may not work and do not know how to test it. It is being sold as an artifact of history for display and not as a functional device. The unit has a hand written value of 2,000 Ohms on the instructions.

Antique POWERS REGULATOR CO Heat Regulation Panel Dual Gauges Chicago Steampunk
It's a Rare and Visually Striking Example of Early 20th Century Heat Regulation Technology, it even has the Copper Tubing Still Attached on the Back Side.
You save $26.25

Antique Relay from J.H. Brunnell & Co. Inc., New York (untested)
Antique Relay from J.H. Brunnell & Co. Inc., New York (untested). Original date of manufacture is unknown but I believe it is from the late 1800s or early 1900s but I am not 100% sure. See photos for details on the condition.

Circa 1900, Antique French Aneroid Barometer & Thermometer by Samy et Lévy
Capture the essence of Belle Époque scientific precision with this stunningFrench wall-mounted weather station. Maker: Samy et Lévy (S.L. & Cie). Era: Late 19th Century / Early 20th Century (Circa 1890–1910).

Antique Scimatco Bunsen Burner Pat. 1913. Scientific Materials Co.
Antique Scimatco Bunson Burner Pat. Jan. 1913. Scientific Materials Co.Pittsburgh Pennsylvania USA. Cast iron and brass. 6 1/2 inches tall. Good condition, see photos for overall condition.

Vintage British Brass & Wood Letter/Scale/Balance Scale
This antique British brass and wood letter/scale/balance scale is a unique addition to any collection. On the brass cross piece, it is marked "Made in England," and on the other end, "Warranted Accurate.".

COLLECTION OF OLD CHEMICAL APPLIANCES. ALEMBI DUJARDIN ETC...XIX CENTURY
COLLECTION OF CHEMICAL UTENSILS. PERIOD XIX CENTURY. ÉPOCA SIGLO XIX. OTHER UTENSILS 35 X 15 CM AND 25 X 17 CM. SEE THE IMAGES TO CHECK THE REAL CONDITION OF THE CHEMISTRY UTENSILS COLLECTION. AUTRES USTENSILES 35 X 15 CM ET 25 X 17 CM.

Vintage Used Davis Wynn & Andrews Ltd. Anson Vibrometer. Made in UK.
Used Davis Wynn & Andrews Ltd Anson Vibrometer. Inspection plaque says May 1951. Made in United Kingdom.

Unique!!! Barometer Wooden Case, Art Nouveau, Darmstadt
Rare Art Nouveau barometer wooden housing. Length 56.5 cm Width 17.7 cm Good used condition, Age -related signs of wear (see photos) Photos are the part of the description XXL pictures and mobile-optimized auction templates at www.trixum.de.

Antique Edison Lamp Works Foot Candle Light Meter Early Edison Light
The unit is all complete and still has its original leather carrying case (although the stitching on the left front is broken). I have had this kicking around from probably 30 plus years.

WESTON / Model KS-8589 WESTERN ELECTRIC PULSE METER 7 3/4” Diameter GOOD
WESTERN ELECTRIC.

BRASS RING WITH GLASS AND NEEDLE FOR A BAROMETER 3 7/8″ OR 9,8 CM WIDE
It’s approx. In good condition. Used item, signs of use and age. -Wood case parts. They are bound to have signs of use, may be in need of cleaning. They might look slightly different then pictured due to production process differences.

Rare Antique 18th-Century Optics Engraving Catoptrics - Catoptrical Machines
RARE antique 18th-century hand-colored engraving on optics, entitled "Catoptrical Machines," executed by J. Pass and published by J. Wilkes in London in 1799.

Vintage Blood Pressure Manometer Kit from Dr's Estate
Vintage Blood Pressure Manometer Kit from Dr's Estate

DAVID WHITE BRASS SURVEY DUMPY Level WITH CASE 18" C:1941 114
DAVID WHITE CO. VERY WELL BUILT. CASE AND HOOD INCLUDED.

Rare Antique 18th-Century Optics Engraving Burning Glasses & Burroughs' Machine
RARE antique 18th-century hand-colored engraving on optics, entitled "Burning Glasses and Burroughs' Machine," executed by J. Pass and published by J. Wilkes in London in 1799.

Bausch & Lomb The Model Universal Monocular Microscope
Super rare Bausch & Lomb The Model Universal Monocular Microscope. Based on serial number look up, this unit with serial number ‘8919’ (stamped on the inside lower baseboard of the wood case) is dated between 1890-91 (Thanks to Paul to call out my mistake on manufacturing date). All optics and the body are very clean and considered excellent for an 100+ years old microscope. Wood carrying case is in fine condition with the original hardware and key although missing screws in one side to not keep the handle in place as pictured. Two eyepieces and three lenses are all original. I acquired this set from someone who claimed this was received as a gift from the original owner (a doctor resided in Portland, OR).

Lot of 8 pcs Antique Gas Geissler Glass Tubes Spectroscopy Vacuum Neon Geisler
Lot of 8 original Geissler tubes. Glass is generally clean with good clarity. Several of these feature more complex internal structures than the typical straight-tube designs, making this a more desirable and visually interesting group.