Sold6 Physical Demonstration Instruments, c. 19206 Physical Demonstration Instruments, c. 1920 1) Vacuum tube with cylindrical cathode, height 11 2/5 in. - 2) Canal ray tube according to Goldstein, length 12 ½ in. - 3) Geissler tube with glass bulbSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) Crookes tube, with aluminum anode in butterfly form, coated with a fluorescent material, with glass base, height 6 ¾ in. - 2) Crookes tube, with fluorSee Sold Price
SoldRuhmkorff-Pattern Spark Coil, c. 1920Ruhmkorff-Pattern Spark Coil, c. 1920 Physical demonstration instrument, unmarked, length of the coil 8 ¾ in., spark length approx. 6 in., with pole reverser, wooden base, overall size 13 x 7 x 8 �See Sold Price
Sold5 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
Sold4 Large Physical Demonstration Instruments, c. 19204 Large Physical Demonstration Instruments, c. 1920 1) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 12 ½ in. wide. - 2) Cathode ray tube according toSee Sold Price
Sold5 Physical Demonstration Instruments, c. 1920 onwards5 Physical Demonstration Instruments, c. 1920 onwards 1) Geissler tube, with multicolored spiral and uran glass cup, length 12 ½ in. - 2) Crookes cathode ray tube, used to demonstrate the influence oSee Sold Price
Sold4 Large Physical Demonstration Instruments, c. 19204 Large Physical Demonstration Instruments, c. 1920 1) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 12 ½ in. wide. - 2) Cathode ray tube according toSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) High-voltage transformer according to Elster and Geitel, made by Max Kohl, Chemnitz, Germany. On walnut base with 4 porcelain legs, 11 x 8 in. - 2) DisSee Sold Price
Sold5 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) Canal ray tube after Goldstein, made by by Rudolf Pressler, Cursdorf, Germany. Height 13 in. - 2) Vacuum bulb with Tesla vacuum, height 12 ¼ in. - 3)See Sold Price
Sold4 Large Physical Demonstration Instruments, c. 19204 Large Physical Demonstration Instruments, c. 1920 1) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 11 ¾ in. wide. - 2) Cathode ray tube according toSee Sold Price
Sold6 Induction Coils, c. 19206 Induction Coils, c. 1920 Physical demonstration models, 2 with moveable coils, sizes between: 6 1/4 x 3 1/6 and 12 1/4 x 6 3/4 in. 6 Induktionsspulen, um 1920 Physikalische Demonstrationsmodelle, 2xSee Sold Price
Sold2 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
Sold4 Physical Demonstration Instruments, c. 19154 Physical Demonstration Instruments, c. 1915 1) Coulomb's hemispheres with sphere on isolated tripod, manufactured by Max Kohl. – 2) Spark tube, type FX47C, height 11 ½ in. – 3) Pocket inductionSee Sold Price
4 Physical Demonstration Instruments, c. 19154 Physical Demonstration Instruments, c. 1915 1) Coulomb's hemisphere with sphere on isolated tripod, manufactured by "Max Kohl". – 2) Spark tube, type FX47C, height 11 ½ in. – 3) Pocket inductiSee Sold Price
SoldGroup of Physical Instruments, c. 1920Group of Physical Instruments, c. 1920 1) Induction coil, width 8 ¾ in., with polarity charger. – 2) Marconi HF-Transformer. – 3) Relay. – 4) W.D. rectifier. – And: 5) Galvanometer by KrügeSee Sold Price
Sold2 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
Sold"Neon Lamps" Physical-Demonstration Model, c. 1920Neon Lamps Physical-Demonstration Model, c. 1920 French teaching model, with 8 individually-operated neon bulbs, on wooden base, 15 ¾ in. wide. Physikalisches Demonstrationsmodell "Glimmlampen", um 1See Sold Price
SoldInduction Coil and 6 Demonstration Tubes, c. 1920Induction Coil and 6 Demonstration Tubes, c. 1920 1) Induction coil, Max Kohl, Chemnitz, Germany, for 12 volts DC, spark length approx. 1 1/5 in., coil length 5 ½ in. - 2) Channel ray tube afterSee Sold Price
SoldGroup of Physical Demonstration Models, c. 1920Group of Physical Demonstration Models, c. 1920 1) Electromagnetic tuning fork. - 2) Sliding induction coil by Kagenaar, Utrecht. - 3) Cutaway model of an electric-driven sound generator. - 4) GalvanSee Sold Price
SoldLot of Physical Demonstration Models, c. 1920Lot of Physical Demonstration Models, c. 1920 1) Wimshurst's "Voltana" electrostatic machine, height 17 in, complete working condition! - 2) 3 Geissler's tubes (2 of them with spirit), 1 small x-ray tSee Sold Price
SoldLot of Physical Demonstration Models, c. 1920Lot of Physical Demonstration Models, c. 1920 1) Wimshurst's electrostatic machine, manufacturer "Fritz Saran, Halberstadt", discs Ø 10 1/5 in., without crank. - 2) Galvanometer, manufacturer "W.J. HSee Sold Price
SoldPhysical Demonstration Models, c. 1920Physical Demonstration Models, c. 1920 1) Small Wimshurst's induction machine, complete but for restoration. - 2) Communication tubes. - 3) Electroscope. - 4) Vertical galvanometer. - 5) Leyden jar.See Sold Price
Sold6 Physical Demonstration Tubes, c. 19156 Physical Demonstration Tubes, c. 1915 1) Maltese cross tube, length 11 in. – 2) X-ray tube, length 7 in. – 3) Puluj's radiometer, height 9 in. – 4) Geissler tube, height 11 2/5 in. – And:See Sold Price
Sold6 Physical Demonstration Tubes, c. 19156 Physical Demonstration Tubes, c. 1915 1) X-ray tube, length 13 in. - 2) Maltese cross tube, length 7 in. - 3) Puluj's radiometer, height 4 1/3 in. - 4) Vacuum bulb with phosphorescent mineral (defSee Sold Price
RAMBLER AUTOMOBILES CELLULOID HOME TEAM RUN COUNTER W/ AUTOMOBILE GRAPHIC.Dan Morphy Auctions4.2(1.3k)See Sold PriceFeb 25, 2024
ILLIONS SUPREME CAROUSEL FIGURAL DIVIDER PANELJohn McInnis Auctioneers,LLC4.6(502)See Sold PriceFeb 25, 2024
Auguste Leroy & Cie France Gilt 950 Silver Mounted Cut Glass Pitcher c. 1920Taylor & Harris4.7(158)See Sold PriceMar 10, 2024
Frank Walter Lawrence Platinum, Gold, Star Sapphire and Diamond Pendant-Brooch with Chain NecklaceDOYLE Auctioneers & Appraisers4.6(166)See Sold PriceFeb 29, 2024
Platinum, Sapphire and Diamond Bow BroochDOYLE Auctioneers & Appraisers4.6(166)See Sold PriceFeb 29, 2024
Shotei Hiroaki Pre-earthquake Woodblock - ItakoFloating World Auctions4.7(233)See Sold PriceMar 01, 2024
Hiroaki Pre-earthquake Woodblock -Woman in EveningFloating World Auctions4.7(233)See Sold PriceMar 01, 2024
Italian Sterling Silver Candelabra Pair 5-Light c.1920 59.6 ozt.Mynt Auctions4.6(680)See Sold PriceFeb 27, 2024
Charles Schneider, Jades pitcher and large vaseToomey & Co. Auctioneers4.7(390)See Sold PriceFeb 29, 2024
TWO ANTIQUE JEWISH NATIONAL FUND CHARITY BOXES. The first one made in Berlin c. 1920J. Greenstein & Co., Inc.4.3(55)See Sold PriceApr 16, 2024
Chinese Relief Carved Soapstone Sculpture Ca. 1840, "Guanyin with Attendants", H 7.5" W 6" DepthDuMouchelles4.6(825)See Sold PriceMar 14, 2024
German Salt Glaze Crockery Jug, C. 1920, H 15.5", W 6", L 8"DuMouchelles4.6(825)See Sold PriceMar 14, 2024
