4 Large Physical Demonstration Instruments, c. 1920

2 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 i

5 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 demonstr

Large Electro-Magnetic Motor with Rotating Geissler Tube, c. 1910 Physical demonstration model, height 18 ¼ in., for tubes of up to 15 3/4 in. length, brass and steel, on walnut base, later tube, ve

4 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 plast

2 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 c

4 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:

4 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:

Large 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 ¾

4 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:

High-Voltage Apparatus after Tesla, c. 1980 Large physical demonstration model, with spark gap, height 23 in. Hochspannungsapparat nach Tesla, um 1980 Großes physikalisches Demonstrationsmodell, m

Large C 1920 Folk Art Alligator C 1920 Hardwood 6 1/4"H X 35 1/8"W X 8 3/4"D Original dry polychrome paint, deeply relief carved from a single piece, nicely detailed. Very graphic. Shipping: Domestic:

1 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) Ampere

French Regency Style Large 4 Drawer Painted Chest C. 1890's - 1920's- 42 inches tall x 50 x 21

Large 19/20 C Chinese Porcelain Square Vase. Mock ting handles, colorful figural motif, prose and red seals throughout. 2 Small light scratches or in good condition. Measures 22-1/2" H x 7-3/4" W x 6-

Group 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 me

Large Chinese 19/20 Century Blue and White Porcelain Double 4-Claw Confronting Dragon Vase between a flaming pearl with bands of water, clouds, bats, leaves, and Cloud Collar, the base in clear glaze.

Large Vertical Steam Engine, c. 1920 Schoenner 165/4S or Falk 455/3S, brass boiler Ø 4 in., flywheel Ø 4 1/8 in., with fixed brass cylinder, slide valve control, steam whistle, weighted safe

Title: LARGE LIGHTHOUSE DOORSTOP Date/Period: C 1920-50 Materials: Cast Iron Dimensions: 21 1/4"H X 8 3/4"W X 4 3/8"D Provenance/Additional Info:Depicting Cape Hatteras Light, Buxton, NC. Hollow 1/2 r

Large Ice Fishing Decoy C 1920-40 Pine, Iron & Lead 2 3/4”H X 14 1/8”W X 5 1/4”D Vibrant original painted surfaces, the fins lightly oxidized. Carpet tack eyes, line ring intact, lead weight und

Title: Large Lighthouse Doorstop Date/Period: C 1920-50 Dimension: 21 1/4"H X 8 3/4"W X 4 3/8"D Materials: Cast Iron Additional Information: Depicting Cape Hatteras Light, Buxton, NC. Hollow 1/2 round

A LARGE SILVER TORAH SHIELD. American, c. 1920. Hand chased. With applied Solomonic pillars, two winged griffons, a crown and a Decalogue. Marked 84 and sterling. 12.4” tall.

5 Vintage Measuring Instruments, c. 1910 1) Large lecture theatre ammeter for continuous current, height 17 3/4 in. – 2) 3 medium-sized ammeters. – And: 3) Galvanometer by "A. Gaiffe – Paris",

Large Early Ice Fishing Decoy C 1920’s Mixed Materials 3"H X 13 3/8"W X 4 3/4"D Bright original whimsically painted surfaces, carved pine body, applied sheet galvanized tin fins & tail, mother of pe

Large German Fraureuth Porcelain Tureen c. 1920. With Hallmark and "Fraureuth Kunstabteilung Handgemalt" on the bottom. Romantic transfers and insects on white. Measures 13"x8 1/2"x8 1/2". Weight 4 pd