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Items for sale followed by sold items:

— One of five extant 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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— Seeley’s Portable X-Ray Machine From 1915. Sold!

James E. Seeley was a prolific inventor with an ingenious mind. Many patents were issued to his name. The portable X-ray machine offered here was manufactured by Vulcan Coil Company located in Los Angeles, California; a company Seeley was one of the incorporators. Seeley protected this machine with three patents which were issued in 1915 and 1916 in his name.
Only very few were ever built, the machine offered here has serial number G209 and powers an early high frequency cold-cathode ion-X-ray-tube with auto-regeneration invented by Henry Lyman Sayen and patented in 1897, just two years after Wilhelm Conrad Röntgen discovered X-rays on November 8 1895. X-rays were also called Röntgen-rays to honor its inventor.
Most early X-ray machines utilized induction coils powered by direct current to create the high tension needed to create X-rays. The Vulcan Coil offered here is powered by 110 Volts alternating current and uses a special coil which was patented by Seeley on October 19, 1915.
Little was known about the danger of X-rays at the time; radiologists taking X-rays of patients did not protect themselves from the harmful radiation and many suffered greatly and died young.
Today X-ray technology is so advanced that natural radiation is not much greater than having taken a diagnostic X-ray from a radiologist or dentist. Read more>>


Posted on 12 May 2023, 20:20 - Category: Scientific Instruments
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