A WELCH SCIENTIFIC CO. ENGINE DEMONSTRATOR

The early 20th century hand-cranked cutaway model signed W.M. Welch Scientific Company with a decal, embossed number 1753-1. Measures 6 x 8 x 5 inches.

Pair of Molecular Chemistry Model Sculptures. One cube model with black atoms has a tag marked "CUBIC" and the other model with green atoms is marked "TRICLINIC," by Sargent-Welch Scientific Co. Dimen

Steam toys (3), Stansi Scientific Steam Engine Demonstrator, c.1950, VG cond, Stansi Scientific Gas Engine Demonstrator, c.1950, possibly some parts missing, VG cond, Ziegler Steam Engine Demonstrator

Hand crank and it works, shows some wear, bulbs are missing above the cylinders, displays very well, made by the W.M. Welch Scientific Company, 9.25"x15", rated 8.5

**For an in-house shipping quote, please reach out to us at rockauctiongallery@gmail.com** This vintage tellurion was manufactured by the T.N. Hubbard Scientific Co. in 1955. A Tellurion is an apparat

rated 9, 7"x16", the metal teaching aid is in very good condition and works wells, is marked Central Scientific Co. Chicago, Ill.

**For an in-house shipping quote, please reach out to us at rockauctiongallery@gmail.com** Set of functional store displays made by the Elgin Butter Co. between 1871 and 1918. Elgin, IL The Elgin Butt

Lionel Chesapeake & Ohio #18043 Hudson Steam Engine and Tender. Plus #19148 C&O Diner Car and #19148 C&O Chessie Club Car. All never played with Boxed

Sterling & Welch Co. Sterling Silver Tray Style #9108 having grape leaf tray with vine and grape handle; marked 'sterling' on underside Condition: Very Good, light wear, tarnish, polish residue Height

DESCRIPTION: Spilhaus Space Clock designed by Dr. Athelstan F. Spilhaus and made by the Edmund Scientific Co. Largest dial presents a variety of celestial information, lower left dial shows regular ti

Gerster 8 Day Clock in Rosewood Case by Welch Spring & Co. Forceville, CT. Dimensions: 18 1/2" X 12 1/2" X 6 1/2"

DESCRIPTION: An antique calendar clock, manufactured under license from Dr. Athelstan Spilhaus by Edmund Scientific Co. Serial number: B2237. CIRCA: 20th Century DIMENSIONS: H: 15 1/2" W: 11 1/2 " D:

Spilhaus Space Clock designed by Dr. Athelstan F. Spilhaus and made by the Edmund Scientific Co. Largest dial presents a variety of celestial information, lower left dial shows regular time, and lower

Central Scientific Co. Industrial Laboratory Apparatus with 3 Sockets. Triangular apparatus has 3 legs and 3 sockets and is marked Central Scientific Co, Chicago Illinois. We haven't a clue what it wa

A Central Scientific Co. Scale, an Ingraham Eight-Day Movement Mantle Clock and Framed Salesmen Samples of Blue Grass Axes Height of scale 15 x 16 1/4 x 8 1/4 inches.   Property from the Collecti

Central Scientific Co. Steam Locomotive Valve Gear Cut Away Model Working valve gear model showing movement of the piston and valve within the steam chest. The model also has working reverse gear. The

41" Hanging glass, brass, and metal barometer mounted on wood with light wear. Comes with the wood shipping box. PLEASE NOTE, THERE IS ONLY ONE WAY TO PAY FOR ONLINE ITEMS IN THIS AUCTION WHICH IS THR

9 x 11.25 inches - compass needle is missing and glasss unattached

HO GAUGE TRAIN 4012 C&O ENGINE AND DIESEL WITH 5 C&O PASSANGER CARS, 1688, 1403, 1610, RALIEGH WOLVERINE

Approx 7 3/4" x 8 1/2" x 7" tall.

DESCRIPTION: Edmund Scientific Co. Custom 500 blood pressure testing kit including sphygmomanometer, stethoscope, case, documents, and original box. CIRCA: 20th Century ORIGIN: Japan DIMENSIONS: (Kit)

approx. 18 tall, see photo's

PARCO SCIENTIFIC CO. MICROSCOPE (college grade). Model No. 260353 with a large lot of Esco glass slides.

Aloe Scientific Co. Pneumatic Micro Manipulator. Marked: "Pneumatic Micro-Manipulator De Fonbrune Series A No. 352, Aloe Scientific Division Of A. S. Aloe Co.U.S.A. Unknown working condition." In Case