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Items for sale followed by sold items:

— One of five extant antique Baldwin Arithmometers from 1874. Price $9,400.00. — Exceedingly Rare Eberhard Faber International Letter Scale. Price $2,450. — The Only Extant Antique Harrison Sewing Machine, Patented in 1859. Price $5,450. —Jordan L. Mott pyramid stove from 1835. Price $1,750. —First Telephone, the Coffin Set manufct. by Charles Williams, Boston, Massachusetts, USA, for the National Bell Telephone Co. of 1878. Price $9,950. —Early, unknown Watson Sewing Machine. Price $6.250. —The only known extant EVEREADY Lady Liberty, or Statue of Liberty Novelty Light ever to be found! Price $6.800. — Legendary ALTEC LANSING 604 Duplex Speaker With Original ALTEC Enclosure. Price $4,350. —W. Younger 1847 Washing Machine Patent Model —Exceedingly rare and fine quadruple Clepsammia or Hourglass, probably the finest extant example from the 17th century in the world. Price $16,200. —Exceedingly rare and very ornate early battery Novelty Light, the only one known of its kind! Price $1,450. — Rare Bryant’s Celestial Indicator, pat. Sept. 10, 1872. Price $8,750.00 —The Adding Machine of Pierre Fardoil c. 1700. Price $73,500. — Rare Antique Deep Sea Diver´s Boots or Shoes. Price $650. — SOLD ITEMS ... SOLD ITEMS ... SOLD ITEMS ... SOLD ITEMS — — One of only two known DUPLEX / Babcock Pencil Sharpeners patented in 1900. Sold! —Exceedingly rare and important Singer 1856 Turtle-Back Sewing Machine; one of eight machines extant. Sold! — One of only three known extant Frank S. Baldwin Calculators Patented in 1902. Sold! — Seeley’s Portable X-Ray Machine From 1915. Sold! — Exceedingly Rare 1904 Oscar Hedstrom Motor, First Motor to Power an Indian Motorcycle. Sold! — Only three other Sargent & Greenleaf Safe Time Looks like this are known to have survived! Sold! — Exceedingly rare Pocket Battery No.1. Sold! — Earliest Known, and one of a kind, Martian Big 4 Crystal Radio. Sold! — Only Known First-Model-of Williams Can-Opener. Sold! — Only Known Surveying Instrument Signed J.MORSE (18th Century). Sold! — The only known sewing machine based on Cook´s Patent of 1863. Sold! — Early, ca 1820, James Watt Model Steam Engine. Sold! — Charles Page Reciprocating Electro-Magnetic Engine of 1838. Sold! — Rare Illuminated Pathe Westminster Cone Speaker & Radio. Sold! — Walker’s Pocket Camera; The First Pocket Camera. Sold! —The finest figural Sewing Machine; the “Lady” or “Cora Munro” Sold! — Charles Lane Poor Line of Position Computer. Sold! —Very Early Leclanche Battery Sold! —The only Sextuple Safe-Time-Lock extant. Sold! —Earliest known Blow Accordion with 10 keys. Sold! — Rare, KEY to the AIR, Radio outfit. Sold! — Sargent & Greenleaf model 4 Safe Time Lock of 1878. Sold! —The only known extant Spencer Electric Co., Potbelly Candlestick Telephone (serial no. 32!) Sold! —Peerless Whittler Pencil Sharpener, with three rotating knifes. Sold! —Rare, and in fine condition, H. H. Scott model LK-150 Stereo HiFi Vacuum Tube Power Amplifier in perfect working order. Sold! —Early version (serial # 160!) of the 1921 three bank Noiseless Portable Typewriter in very good condition. Sold!

Endorsed Websites

— Antique Telephone Collectors Association — Collection of Historical Scientific Instruments Harvard University — Massachusetts Institute For Technology — Smithsonian Institution — Technogallery a Museum of Science & Invention where the Exhibits Are For Sale

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— Charles Page Reciprocating Electro-Magnetic Engine of 1838. Sold!

At that time (1830's and 1840's) it was still open whether Electromagnetic motors should be rotating or reciprocating machines, i.e. simulate a plunger rod of a steam engine. While Davenport's motor was resembling a rotating design, Pages motor was based on the plunger type, resembling a steam egine by which Page replaced the piston generating the force transmitted to the flywheel by a beam with four electric magnets.
This working demonstration model was crafted by Daniel Davis Jr., sometime after July 1838 and was mentioned in Benjamin Silliman's American Journal of Science, vol. XXXV, 1838, page 264; the oldest Scientific Journal in the United States, founded in 1818.
It is estimated that less than five of these models have survived and are only to be found in museums or major private collections. read more>>


Posted on 28 Mar 2020, 00:00 - Category: Scientific Instruments
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