Sold2023English Laboratory Induction Coil, c. 1900English Laboratory Induction Coil, c. 1900 James Morris, Bolton. Coil length 12 in., length of the spark gap approx. 4 in., with Ruhmkorff's commutator, on polished mahogany base, size 21 x 11 in. - TSee Sold Price
Sold2023A Very Large Induction Coil,A Very Large Induction Coil, English, c.1900, unsigned the secondary coil with vulcanite separator and supported on wooden uprights, on large French polished mahogany base with brass lacquered terminaSee Sold Price
Sold2023An Unusual Induction Coil,An Unusual Induction Coil, English, c.1900, engraved on the coil, 'P HARRIS & Co. Ld. BIRMINGHAM', the coil mounted on a French polished mahogany plinth base with all lacquered brass fittings and termSee Sold Price
Sold20203 Induction Coils and 5 Leyden Jars3 Induction Coils and 5 Leyden Jars 1) 10 ½ in. induction coil by Griffin & George, Great Britain. With commutator and spark gap, on mahogany base, 18 x 11 in. - 2) 6-inch induction coil, unmarked, wSee Sold Price
Sold2015Large Induction Coil According to Ruhmkorff, c. 1900Large Induction Coil According to Ruhmkorff, c. 1900 No. 7934, manufactured by Fr. Klingelfuss & Co., Basel. Coil length 16 ½ in., Ø 8 ¾ in., on walnut base. Großer Funkeninduktor nach Ruhmkorff,See Sold Price
Sold20156 Bicycle Lamps, 1900 onwards6 Bicycle Lamps, 1900 onwards 1 candle lamp and 5 carbide lamps, manufactured by: Luxor, Solar, Panther and Miller. – In addition: 1 German trainman lamp. 6 Fahrradlampen, ab 1900 1 Lampe mit KerzenSee Sold Price
Sold2020Large Induction Coil According to Ruhmkorff, c. 1910Large Induction Coil According to Ruhmkorff, c. 1910 Manufactured by AEG, Berlin. For spark length up to 10 in., overall size 34 x 10 5/8 x 18 ¼ in., good original condition. Großer Funkeninduktor nSee Sold Price
Sold2022Early Wall Telephone by L.M. Ericsson, 1890 onwardsEarly Wall Telephone by L.M. Ericsson, 1890 onwards Stockholm, model 325, fixed carbon microphone, Bell-type handset, 4-part induction coil, double bell, lightning protection, ornate walnut case, writSee Sold Price
Sold2023Early Wall Telephone by L.M. Ericsson, 1890 onwardsEarly Wall Telephone by L.M. Ericsson, 1890 onwards Stockholm, model 301, fixed carbon microphone, Bell-type handset, 3-part induction coil, double bell, lightning protection, ornate walnut case, oneSee Sold Price
Sold2023French Experimental "Electricity" Kit, c. 1900French Experimental "Electricity" Kit, c. 1900 Coffret Electricité, consisting of 2 chromic acid elements, 2 vials for chromic acid, a Rühmkorff induction coil, an electric motor, 2 GeisslerSee Sold Price
Sold2016Large Induction Coil with Mercury Interrupter, c. 1910Large Induction Coil with Mercury Interrupter, c. 1910 Coil length 19 5/8 in., spark length up to 9 7/8 in., on wood base, size 32 1/3 x 14 1/5 in. An impressive exhibition item! Großer FunkeninduktoSee Sold Price
Sold2018Wall Telephones and Telephone Parts, c. 1900Wall Telephones and Telephone Parts, c. 1900 1) Wall telephone by J. Berliner, Hanover, no. 23, with induction coil, no earphone. - 2) Belgian wall telephone, handset with horn, marked "Compagnie desSee Sold Price
Sold2022Early Wall Telephone by L.M. Ericsson, 1890 onwardsEarly Wall Telephone by L.M. Ericsson, 1890 onwards Stockholm, model 301, fixed carbon microphone, Bell-type handset, 3-part induction coil, double bell, lightning protection, ornate walnut case, writSee Sold Price
Sold2022Early Wall Telephone by L.M. Ericsson, 1890 onwardsEarly Wall Telephone by L.M. Ericsson, 1890 onwards Stockholm, model 301, fixed carbon microphone, Bell-type handset, 3-part induction coil, double bell, lightning protection, ornate walnut case, writSee Sold Price
Sold2020Large Induction Coil According to Ruhmkorff, c. 1910Large Induction Coil According to Ruhmkorff, c. 1910 Manufactured by Siemens & Halske. For spark length up to 6 in., with commutator, length of the coil 15 2/5 in., overall size 30 x 10 5/8 x 16 ½ inSee Sold Price
Sold2020Large Induction Coil by Siemens & Halske, c. 1910'Large Induction Coil by Siemens & Halske, c. 1910 For "Gesellschaft für drahtlose Telegraphie", type RF ms2, 17 ¾ x 9 7/8 x 11 2/5 in. 'Großer Funkeninduktor von Siemens & Halske, um 1910 Für "GeSee Sold Price
Sold2022A Very Large Induction Coil,English, c.1900, unsigned the secondary coil with vulcanite separator and supported on wooden uprights, on large French polished mahogany base with brass lacquered terminals, tall upright insulators tSee Sold Price
Sold2020Large "Nivoc" Laboratory Induction Coil, c. 1930Large "Nivoc" Laboratory Induction Coil, c. 1930 W. and J. George and Becker Limited, Birmingham and London. Coil length 13 in., length of the spark gap approx. 5 in., with Ruhmkorff's commutator, onSee Sold Price
Sold202312 Precision Measuring Instruments, c. 1870-190012 Precision Measuring Instruments, c. 1870-1900 1) Kohlrausch's universal bridge, no. 1822, Hartmann & Braun, with comparative resistors from 0.1 to 1000 ohms, induction coil and slide resistor, on mSee Sold Price
Sold2020Electrotherapeutical Devices, Physical Instruments and'Electrotherapeutical Devices, Physical Instruments and More, c. 1900-20 1) Appareil d'Induction Volta Faradique, manufacturer A. Gaiffe à Paris, with induction coil, acid battery and accessories inSee Sold Price
Sold2018A NICE EARLY OPEN COIL ELECTRIC MOTOR CIRCA 1900An interesting miniature open coil motor, nice original condition with original decal, cast iron and brass on a wood base, unsigned. Measures 3.5 x 525 x 4.75 inches. We happily provide seamless in-hoSee Sold Price
Sold2018German Junghans Bracket Clockcirca 1900, mahogany case, silverplate face, coil chime and four rod strike, with pendulum. 13.5 x 10.5 x 7 in. Private Estate, Fearrington Village, North Carolina. All proceeds from the sale of thisSee Sold Price
Sold2024Small Morse Telegraph with Key, c. 1900Small Morse Telegraph with Key, c. 1900 Ink-writer, unmarked, original lacquered brass, spring-drive (working), coil with signal bell, on mahogany base, 10 x 5 in., with separate Morse key. Kleiner MoSee Sold Price
Sold2023Skeleton Telephone of the Hungarian Telegraph Administration, 1900 onwardsSkeleton Telephone of the Hungarian Telegraph Administration, 1900 onwards Telefonfabrik AG, Budapest, and Ericsson/Deckert & Homolka. No. 7924, handset with speaking horn, transverse cradle, change-oSee Sold Price
BonhamsTESLA ON ELECTRICITY. TESLA, NIKOLA. 1856-1943. Typed Letter Signed ('N. Tesla') to N.S. Amstutz...$16,000
5 days LeftJay Anderson AuctionCirca 1900 5 high Signed Macy stacking bookcase with original leaded glass top section & rare mother$300(3 bids)
May 18Rich Penn AuctionsOptical Charts & Examining Tools (8), the Emmetropic Eye, (2) J.K.O. Co. charts & 5 early 1900's$50
20 hrs LeftL'Autographe LtdLITERATURE - SULLY-PRUDHOMME Rene_, Franois, Armand (1836 - 1907) - Autograph letters signedp£80
May 16DuMouchellesKPM (German) Painted Porcelain Figurines, Feat. 'Hercules' & 'Minerva', Ca. 1900, H 5.25" W 1.75"$50
2 days LeftDoyle New YorkA group of official architectural studies on a variety of French historical monuments$250