Sold20205 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) "Mammoth" X-ray air-cooling tube with regeneration device, made by Cuthbert Andrews, England, length 20 in. - 2) Crookes cathode ray tube, for demonstrSee Sold Price
Sold20202 Large Physical Demonstration Instruments, c. 18802 Large Physical Demonstration Instruments, c. 1880 1) "Electrical Egg", for the demonstration of an electrical discharge between two electrodes in a near vacuum, original lacquered brass, height 25 iSee Sold Price
Sold20182 Physical Demonstration Instruments, c. 19002 Physical Demonstration Instruments, c. 1900 1) Aluminum plate electrometer by A. Pichler's Wwe, Vienna. Brass, height 10 ½ in. - And: 2) Ohmmeter by Chauvin & Arnoix, Paris. No. 696, in wood cSee Sold Price
Sold2020Group of Scientific InstrumentsGroup of Scientific Instruments Physical demonstration models and others: 5 various Crookes cathode ray tubes, 1 x-ray tube (defective), 15 glass valves, 4 stands, 3 Leyden jars, 2 glass tubes with meSee Sold Price
Sold20164 Physical Demonstration Tubes, c. 19104 Physical Demonstration Tubes, c. 1910 1) Crookes tube, for demonstrating a magnetic altering the direction of radiant matter, length 13 1/3 in. – 2) Tubular magnet coil, height 10 1/5 in. – And:See Sold Price
Sold2017Electro-Magnetic Motor with Rotating Geissler Tube, c.Electro-Magnetic Motor with Rotating Geissler Tube, c. 1915 Physical demonstration model, height 9Â 7/8 in., tube length 10Â 1/5 in., good condition, untested. Elektromagnetischer Motor mit rotierenSee Sold Price
Sold2020RARE ROYAL DOULTON DR. SCHOLLCeramic medical instrument holder. Doulton stamped. Issued: 1920 c. Dimensions: 8.5"H Manufacturer: Royal Doulton Country of Origin: EnglandSee Sold Price
Sold2016Telefunken Single Audion Box Type ED222, c. 1920Telefunken Single Audion Box Type ED222, c. 1920 With RE11 Audion valve, wooden case, size only 5 ½ x 6 ¼ x 3 1/6 in., an auxiliary instrument to use in order with detector receivers. Telefunken-ZusSee Sold Price
Sold20204 Physical Demonstration Instruments4 Physical Demonstration Instruments 1) Tesla generator, 6 in. primary coil, 2 in. secondary coil, with spark gap, pillar 33 ½ in. high. - 2) Wimshurst's electrostatic machine, 2 Leyden jars, 2 plastSee Sold Price
Sold20201 Electric Motor and 2 Measuring Instruments, c. 19201 Electric Motor and 2 Measuring Instruments, c. 1920 1) Small electric motor, 220/240 V, 1/90 hp, 2000 rpm, with belt drive. - 2) Siemens & Halske, ampere meter, 0-30 A, Ø 4 1/3 in. - And: 3) AmpereSee Sold Price
Sold2022ART DECO 14KT WHITE GOLD DIAMOND SAPPHIRE RING, C. 1920ART DECO 14KT WHITE GOLD DIAMOND SAPPHIRE RING (MISSING ONE SAPPHIRE), SZ. 9.5, C. 1920, W. 4.0 GR.See Sold Price
Sold2024Art Deco Diamond 14K Gold Filigree RingAntique 14K white gold filled diamond ring, single diamond (0.25 ct), geometric metal details, size 7.5, c. 1920, unmarked Provenance: Property from the estate of life-long antique jewelry collectorSee Sold Price
Sold2023Group of Physical Demonstration Models, c. 1900Group of Physical Demonstration Models, c. 1900 1) Wimshurst's influence machine, Trüb, Fierz & Cie., Zurich, height 14 ½ in., complete, rubber straps need to be renewed. - 2) 8 chromic acidSee Sold Price
Sold2016Large Dynamo-Electric Demonstration Machine, c. 1920Large Dynamo-Electric Demonstration Machine, c. 1920 With maker's plaque: "Pleskot & Spol, Presna Mechanika, Praha". Handcrank-driven, large chain armature, on oak base, overall size 15 x 11 x 13 ¾See Sold Price
Sold20154 Interesting Physical Demonstration Models, c. 19004 Interesting Physical Demonstration Models, c. 1900 1) Ebert's phosphorescent lamp with 2 electrodes. – 2) Crookes' apparatus for experiments on radiant matter. – 3) Crookes' radiometer. – And:See Sold Price
Sold20164 Physical Demonstration Models, c. 19104 Physical Demonstration Models, c. 1910 1) Reflection and refraction apparatus by "Max Kohl, Chemnitz". – 2) Filament lamp on wooden stand. – 3) Voltmeter by "Radiguet à Paris", brass. – And:See Sold Price
Sold20162 Physical Demonstration Models, c. 19102 Physical Demonstration Models, c. 1910 1) Crookes' radiant matter tube, height 16 ½ in. – And: 2) Winkelmann-type vacuum double bulb, 1 glass tip broken, height 15 ¾ in. 2 physikalische DemonstrSee Sold Price
Sold20166 Physical Demonstration Models, c. 19106 Physical Demonstration Models, c. 1910 1) 2 Leyden jars, height 15 and 20 ½ in. – 2) Discharger, with 2 ebonite handles and hinge. – And: 3) 3 conductors on glass pillars, one by Robert DrosteSee Sold Price
Sold2017motorcyclist, lithographed sheet metal, 17.5 cm, c.motorcyclist, lithographed sheet metal, 17.5 cm, c. 1920, clock mechanism is intact, used German Description Motorradfahrer, Blech lithogr., 17,5 cm, ca. 1920, Uhrwerk intakt, bespieltSee Sold Price
Sold20173 Electro-Physical Demonstration Models, c. 19153 Electro-Physical Demonstration Models, c. 1915 1) Stand with 2 copper spirals separated by a glass cylinder, with an incandescent lamp, height 13 in. - 2) Kolbe's electrometer, aluminum, standard bSee Sold Price
Sold2017A Russian / Soviet Propaganda Plate"The Struggle Creates (produces) Heroes"; 9.5" diam. C. 1920. Rear has hammer, sickle and cog underglaze mark in back. See photo of similar example photographed in "Kunst und Revolution" (Art & RevoluSee Sold Price
Sold2023Britains set #153, Prussian Hussars with officerin original box, dated, very good, box good, 5 pieces, (c. 1920)See Sold Price
Sold2023Britains set #153, Prussian Hussars with officerdated, very good, 5 pieces, (c. 1920)See Sold Price
Sold2023Britains set #94, 21st Lancers, steel helmetsundated, two- eared horses; sand coloured helmets, very good, 5 pieces, (c. 1920)See Sold Price
May 22Kamelot AuctionsOAK DRAFTING TABLE HAVING ADJUSTABLE HEIGHT AND A FRAME BASES C 1920US$50(1 bid)
May 22Kamelot AuctionsSEVEN IRON PANELS INCLUDING FIVE OF THE SAME DIMENSION AND TWO OF DIFFERENT DOMENSIONS C 1920.US$75(2 bids)
7 days LeftKamelot AuctionsPAIR OF ITALIAN WROUGHT IRON HANGING LANTERNS WITH CUT OUT BIRD DESIGN C 1920.US$400
May 22Kamelot AuctionsHAND WROUGHT IRON LOG HOLDER IN THE MANNER OF SAMUEL YELLIN C 1920.US$150(3 bids)
7 days LeftKamelot AuctionsFRENCH ART NOVEAU STYLE IRON AND MARBLE GARDEN TABLE HAVING THREE LEGS C 1920. MARKED BEZIER.US$500(1 bid)
5 days LeftRich Penn AuctionsAutomobilia Campground Sign, "Plunkett's Tourists", sand-painted wood trade sign, c.1920, Exc condUS$175(3 bids)
Jun 02Taylor & Harris11 Minton England for Tiffany & Co Gilt Porcelain Dessert Plates c 1920US$650(2 bids)
May 22Kamelot AuctionsTWO DOOR IRON VITRINE HAVING MIRROR BACK AND GLASS SHELVES C 1920US$150(4 bids)