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20 Meß- und Laborgeräte, ab 1900 1) Stöpsel-Widerstandbrücke, H.W. Sullivan, London, mit 26 Stöpseln. - 2) Galvanometer, L.M. Ericsson, mit Stöpselbrücke und Morsetaste, in Eichenkasten. - 3) Fluxmeter, System Grassot, Frankreich, Metallgehäuse. - 4) Voltmeter, Weston Instrument Company, Berlin, für Gleich- und Wechselstrom. - 5) Fluxmeter, Navy Type TS-15/AP, Marion Electric Institut, USA, mit Anleitung im Deckel. - 6) Dynamo, The Record Electrical Company, England, mit Handkurbel. - 7) Induktionsspule, unbezeichnet, mit Funkenstrecke. - 8) Manganinbrücke, Siemens & Halske, für 0,1, 1 und 2 Volt. - 9) Feldmeßgerät, für Volt und Ohm. - 10) 100-Ohm-Manganin-Widerstand, Siemens & Halske. - 11) Verstärker, mit 2 Trioden Philips B 406. - 12) Milliamperemeter, Modell 23. - 13) Voltmeter, Ernest Turner. - 14) Weston Thermo Milliammeter, Modell 412, USA, in Mahagonigehäuse. - Und: 15) 6 weitere Geräte. Start Price: EUR 180 Twenty Measuring and Laboratory Instruments, 1900 onwards 1) Adjustable resistance, H.W. Sullivan, London, with twenty-six plugs. - 2) Galvanometer, L.M. Ericsson, with plug bridge and Morse key, in oak case. - 3) Fluxmeter, Grassot system, France, metal case. - 4) Voltmeter, Weston Instrument Company, Berlin, for DC and AC current. - 5) Fluxmeter, Navy Type TS-15/AP, Marion Electric Institute, USA, with instructions in lid. - 6) Dynamo, The Record Electrical Company, England, with crank. - 7) Induction coil, unmarked, with spark gap. - 8) Manganin bridge, Siemens & Halske, for 0.1, 1 and 2 volts. - 9) Field meter, for volts and ohms. - 10) 100-ohm Manganin resistor, Siemens & Halske. - 11) Amplifier, with two Philips B 406 triodes. - 12) Milliamp meter, model 23. - 13) Voltmeter, Ernest Turner. - 14) Weston Thermo Milliammeter, model 412, USA, in mahogany case. - And: 15) Six other devices. Start Price: EUR 180

Telegraphenzubehör und Buch mit zerlegbaren Modellen, um 1900-20 1) Isolationsprüfer, Hartmann & Braun, Nußbaumkasten, mit Induktionsapparat, Fach für Trockenelement und Nippoldt'sche Meßbrücke. - 2) 3 Spulen mit Papierstreifen, 1 x auf Gußsockel. - 3) Holzsockel für eine Telegraphenstation (neu). - 4) 2 x Blitzschutz, Messing. - 5) 2 x Stöpselbrücke, zum Schalten von Verbindungen. - 6) 2 x große Relais, Siemens & Halske, in verglasten Holzgehäusen. - 7) 5 x Galvanometer, Hersteller u.a. Siemens & Halske und Gurlt. - 8) 2 x Relais, für Telegraphenstationen, Messinggehäuse. - Und: 9) "Dampf und Elektricität im Anfang des XX. Jahrhunderts", Buch mit 12 zerlegbaren, zum Teil beweglichen Modellen, Verlag von Otto Maier, Leipzig. Start Price: EUR 280 Telegraph Accessories and Book with Models to Dismantle, c. 1900-20 1) Insulation tester, Hartmann & Braun, walnut case, with induction apparatus, compartment for dry element and Nippoldt's measuring bridge. - 2) Three coils with paper strips, one on cast-iron base. -3) Wood base for a telegraph station (new). - 4) Two lightning protectors, brass. - 5) Two plug bridges, for switching connections. - 6) Two large relays, Siemens & Halske, in glazed wood cases. - 7) Five galvanometers, Siemens & Halske, Gurlt and others. - 8) Two relays, for telegraph stations, brass cases. - And: 9) "Dampf und Elektricität im Anfang des XX. Jahrhunderts" (Steam and Electricity at the Beginning of the XXth Century), book with twelve models to dismantle, published by Otto Maier, Leipzig. Start Price: EUR 280

12 Meß- und Laborgeräte, ab 1900 1) Großes Spiegelgalvanometer, The Cambridge and Paul Instrument Co., England, original zaponiertes Messing, 2 Libellen, Höhe 35 cm. - 2) Compensated Decade Resistor, Type 670-F, General Radio Co., USA, mit 3 Dekaden. - 3) Wattmeter, Modell 310, Weston Electrical Instrument Corporation, USA, für Wechsel- und Gleichstrom, Nußbaumgehäuse. - 4) Standard Inductance, Type ZYF 1004, Svenska Radioaktiebolaget. - 5) Präzisions-Glimmer-Kondensator, H.W. Sullivan, London, original zaponiertes Messinggehäuse. - 6) Transformator und Gleichrichter, Typ BMA 1120, Ericsson, Stockholm, Metallgehäuse, (110, 127, 220 Volt Wechselstrom - 24 Volt Gleichstrom). - 7) Spiegelgalvanometer, The Cambridge Instrument Co., England, original zaponiertes Messing und Gußmetall, 2 Libellen, Höhe 41 cm. - 8) Großes Ampere-Meßgerät, Hartmann & Braun, Frankfurt, bis 10 Ampere, Mahagonigehäuse. - 9) Induktions-Widerstand, Cambridge Instrument Co., England, mit 8 Anschlüssen. - 10) Voltmeter, Taschengerät, bezeichnet Deif. - 11) Amperemeter Norma, Modell 2A, Nußbaumgehäuse, umschaltbar auf 1,25, 5 und 20 Ohm. - Und: 12) Spiegelgalvanometer, Siemens & Halske, original zaponiertes Messing und Gußmetall, 1 Libelle, Höhe 38 cm. Start Price: EUR 240 Twelve Measuring and Laboratory Instruments, 1900 onwards 1) Large mirror galvanometer, The Cambridge and Paul Instrument Co., England, original lacquered brass, two bubble levels, height 13 ¾ in. - 2) Compensated Decade Resistor, Type 670-F, General Radio Co., USA, with three decades. - 3) Wattmeter, model 310, Weston Electrical Instrument Corporation, USA, for AC and DC, walnut case. - 4) Standard inductance, Type ZYF 1004, Svenska Radioaktiebolaget. - 5) Precision mica capacitor, H.W. Sullivan, London, original lacquered brass case. - 6) Transformer and rectifier, type BMA 1120, Ericsson, Stockholm, metal case, (110/127/220 volts AC - 24 volts DC). - 7) Mirror galvanometer, The Cambridge Instrument Co., England, original lacquered brass and cast metal, two bubble levels, height 16 ¼ in. - 8) Large amperemeter, Hartmann & Braun, Frankfurt, up to ten amperes, mahogany case. - 9) Induction resistor, Cambridge Instrument Co., England, with eight connections. - 10) Voltmeter, pocket instrument, marked Deif. - 11) Norma ammeter, model 2A, walnut case, switchable to 1.25, 5 and 20 ohms. - And: 12) Mirror galvanometer, Siemens & Halske, original lacquered brass and cast-metal, one bubble level, height 15 in. Start Price: EUR 240

Telegraphenstation von Siemens & Halske, um 1895 Berlin, Nr. 20951, bestehend aus Farbschreibertelegraph mit Federwerkantrieb (funktioniert), Morsetaster, Galvanometer und Relais, auf Eichenholzsockel mit Schublade für den Papierstreifen. Gesamtmaße: 51 x 30 x 27 cm. Start Price: EUR 220 Telegraph Station by Siemens & Halske, c. 1895 Berlin, no. 20951, consisting of spring-driven ink writer telegraph (working), Morse key, galvanometer and relay, on oak base with drawer for the paper strip. Overall dimensions: 20 x 11 ¾ x 10 ½ in. Start Price: EUR 220

Komplette Telegraphenstation der italienischen Post von Gerosa, um 1900 Die italienischen Telegraphen waren vom einheitlichen "Hipp"-Modell-Typ, das von 1870 bis zum Ende des Zweiten Weltkriegs von verschiedenen Unternehmen wie Gerosa, Rosati, Ferreri & C usw. in Lizenz gebaut wurden. Die Firma "FrateIli Gerosa" wurde 1873 gegründet und 1909 von der italienischen Western Electric übernommen. Dies datiert das Gerät zwischen dem späten 19. und frühen 20. Jahrhundert. Serien-Nr. 7520; auf der Rückseite sind die Initialen "RR" (Regie Poste) zu sehen, die das Gerät als offiziellen Posttelegraphen ausweisen. - Die Ausrüstung besteht aus: einem Telegrafenempfänger mit Aufzugsschlüssel und der Spule mit dem Papierstreifen; einer zweiten Spule zum Aufrollen des benutzten Papierstreifens; einer Standard-Morsetaste Modell "Forcieri", die den Leitungsschalter enthält; einen Leitungsschalter Modell "Svizzero", Standard in den italienischen Post-Büros; zwei Galvanometer "Precision Milano", Standard in den italienischen Post-Büros; ein Ersatz-Papierband; ein Tintenfläschchen; und eine Fotokopie der Anleitung, die dem Buch "Il Telegrafo Morse" von 1934 entnommen wurde. - Das Gerät wurde verwendet, um den Telegraphenbetrieb in einigen Kommunikationsausstellungen zu zeigen, es befindet sich in einem ausgezeichneten optischen Zustand und funktioniert einwandfrei. Start Price: EUR 600 Complete Italian Post Office Telegraph Station by Gerosa, c. 1900 No. 7520, the reverse with official post office stamp "RR" (Regie Poste). The unit consists of a telegraph re­ceiver with winding key and wheel with paper tape, a second wheel to collect the used paper tape, a standard "Forcieri" model Morse key with line switch, an unmarked key, a "Svizzero" line switch (standard in the Italian post of?ces), two “Precision Milano" galvanometers (also standard in the Italian post of?ces), a spare paper tape, a small ink bottle and a photocopy of the instructions from the book "ll Telegrafo Morse", 1934. - The Italian telegraphs were of the standardised "Hipp" model, built under license by various companies such as Gerosa, Rosati and Ferreri & C. etc. from 1870 to the end of WWII. Fratelli Gerosa was founded in 1873 and absorbed in 1909 by the Italian Western Electric, dating the present example to the late 1800s or early 1900s. The equipment was used to demonstrate telegraph operation at communication exhibitions. - It is in excellent aesthetic conditions and working condition. Start Price: EUR 600

Meß- und Laborgeräte, ab ca. 1910 1) Ermi YBL 10, für Einstellungen im Mikrovoltbereich, Maße 67 x 35 cm, mit Inventarnummer aus dem Labor von Ericsson. - 2) Großer Voltmesser, Hartmann & Braun, mit Inventarnummer aus dem Labor von Ericsson. - 3) Tastgrad-Meßgerät, Burroughs, in Ledertasche. - 4) Multimeter, Inkavi, in Ledertasche. - 5) Spiegelgalvanometer, Siemens & Halske, Höhe 24 cm. - 6) Luxmeter, Deutschland, komplett mit Anleitung in Holzkasten. - 7) Großer Voltmesser, Hartmann & Braun, bis 40 Volt, Nußbaumgehäuse, mit Inventarnummer aus dem Labor von Ericsson. - 8) Gegeninduktionsspule, The Cambridge and Paul Instrument Company, Mahagonigehäuse, mit Inventarnummer aus dem Labor von Ericsson. - 9) Megaohm-Meßgerät, (Isolationsprüfer), Ermi, Schweden, in Eichengehäuse. - 10) Voltmeter, vermutlich Hartmann & Braun, bis 150 Volt, Nußbaumgehäuse. - Und: 11) Universalklemme, Selbstbau. Start Price: EUR 180 Measuring and Laboratory Equipment, c. 1910 onwards 1) Ermi YBL 10, for settings in the microvolt range, dimensions 26 1/3 x 13 ¾ in., with Ericsson laboratory inventory number. - 2) Large voltmeter, Hartmann & Braun, with Ericsson laboratory inventory number. - 3) Duty cycle meter, Burroughs, in leather case. - 4) Multimeter, Inkavi, in leather case. - 5) Mirror galvanometer, Siemens & Halske, height 9 ½ in. - 6) Luxmeter, Germany, complete with instructions, in wood case. - 7) Large voltmeter, Hartmann & Braun, up to 40 volts, walnut case, with Ericsson laboratory inventory number. - 8) Counter induction coil, The Cambridge and Paul Instrument Company, mahogany case, with Ericsson laboratory inventory number. - 9) Megaohmmeter, (insulation tester), Ermi, Sweden, in oak case. - 10) Voltmeter, probably Hartmann & Braun, up to 150 volts, walnut case. - And: 11) Universal terminal, bench-built. Start Price: EUR 180

Deutsche Telegraphenstation von Siemens & Halske, um 1885 Farbschreiber Nr. 26311, Federwerkantrieb (funktioniert), original zaponiertes Messing, mit Relais, Galvanometer, 250-Ohm-Widerstand, Schalter, Stöpselbrücke und Morsetaste, 2 Spulen mit Papierstreifen, auf Telegraphentisch, Maße 100 x 66 x 78 cm. Start Price: EUR 400 German Telegraph Station by Siemens & Halske, c. 1885 Ink writer no. 26311, spring-driven (working), original lacquered brass, with relay, galvanometer, 250-ohm resistance, switch, plug-in bridge and Morse key, on telegraph station table, size 39 1/3 x 26 x 31 in. Start Price: EUR 400

Telegraphenzubehör und Werkzeuge für Techniker, ab ca. 1890 1) Großer Wandkasten mit Relais von Ericsson, mit Glasfenster. - 2) Batterie-Prüfgerät, in Lederetui. - 3) Schnittmodell eines Bell-Typ-Telephonhörers. - 4) 3 Morsetaster. - 5) 3 Taschen-Kompasse, einer davon bezeichnet "Bézard-Kompass". - 6) 2 Galvanometer in Mahagonigehäusen. - 7) 4 Meßgeräte, 1 x Frequenz, 1 x Milliampere, 1 x Ohm und 1 x Volt. - 8) Telur-Telephonuhr. - 9) 2 Relais, Messing und Mahagoni. - 10) 1 Klopfer. - 11) Kasten mit Feinmechanikerwerkzeug, L.M. Ericsson. - Und: 12) 12 weitere Teile. Start Price: EUR 240 Telegraph Accessories and Tools for Technicians, c. 1890 onwards 1) Large wall box with "buzzer" by Ericsson, with glass window. - 2) Battery tester, in leather case. - 3) Cutaway model of a Bell-type telephone receiver. - 4) Three Morse keys. - 5) Three pocket compasses, one marked "Bézard-Kompass". - 6) Two galvanometers in mahogany cases. - 7) Four meters, one frequency, one milliampere, one ohm and one volt. - 8) Telur telephone clock. - 9) Two relays, brass and mahogany. - 10) A sounder. - 11) Box of precision mechanic's tools, marked "L.M. Ericsson". - And: 12) Twelve additional items. Start Price: EUR 240

An unusual brass mounted mahogany G.P.O. galvanometer

Assorted Lot to include Telegraph Works Galvanometer, Citizen Automatic 21 Jewels Watch and others

Collection of Tangent Galvanometers and others, comprising of a polished mahogany & Brass galvanometer by Pye, Cambridge, another but missing the compass, a later example made of bakelite, and a quadrant electrometer by Pye

A collection of scientific items suitable for steampunk builds including: pye scalamp galvanometer , odhenr mechanical calculator , test equipment etc

A late Victorian scientific instrument a High Sensitivity Galvanometer by the Cambridge Instrument co

An unusual mahogany galvanometer by H Tinsley & Co Limited; small mahogany galvanometer by Dorman & Smith of Manchester and a brass mounted Magneto Electric machine by W Gibbon of Birmingham (3)

Electrical Test Equipment,including a milliamp meter by Elliot, a mirror galvanometer in a cast brass case, a Wheatstone bridge in a polished mahogany case (3)

A Tangent Galvanometer Under a Glass Dome,English, c.1920, signed to the dial Philip Harris Birmingham, on a polished mahogany base with three screw levelling feet, with a needle under a glass dome.

A collection of miscellaneous items, to include a military condenser variable X6F, cat. No.WY0835, serial No.41335/1944; together with a J.H. Holmes & Co of Newcastle upon Tyne galvanometer; a cased student's microscopes; and Wayco Meccano

An early wood and brass Tangent Galvanometer by W. Wilson, 1 Belmont Street, London, NW, , 15 1/2'' tall x 12'' diameter.

A boxed Mahogany cased Meter reading up to 90 either side of zero and having three brass terminals to the top as well as a ring handle. (A card within states ''Detector Galvanometer, Place the galvo in the circuit, or when the voltage is too great, as a shunt in a suitable part of the circuit. The index will then point to the positive terminal'', 3 1/2'' wide x 4 3/4'' high x 2 5/16'' deep.

A large brass-mounted turned wood fishing reel, and a Vintage GPO galvanometer (2)

Telegraph Line Test Set, Telegraph Line Test Set,English, c.1910, engraved to the top vulcanite plate 'TELEGRAPH WORKS, SILVERTOWN, LONDON No.816' with brass terminals and galvanometer in French polished mahogany case with campaign type brass handle, case width 20cm

Electrical Test Equipment, Electrical Test Equipment,including a milliamp meter by Elliot, a mirror galvanometer in a cast brass case, a Wheatstone bridge in a polished mahogany case x3

A Tangent Galvanometer Under a Glass Dome, A Tangent Galvanometer Under a Glass Dome,English, c.1920, signed to the dial Philip Harris Birmingham, on a polished mahogany base with three screw leveling feet, with needle under a glass dome,

Two Brass Galvanometers, Two Brass Galvanometers,including a large Universal Galvanometer by Siemens & Halske A.G. on a lacquered brass frame, with terminals to the front ( one broken but present), with lacquered brass drum and engraved circuit diagram to top face, and another brass cased galvanometer on three screw feet by H Tinsley & Co, London x2

Telegraph Line Test Set, Telegraph Line Test Set,English, c.1910, engraved to the top vulcanite plate 'TELEGRAPH WORKS, SILVERTOWN, LONDON No.806' with brass terminals and a galvanometer in a French polished mahogany case with recessed brass campaign-style handle, case width 24cm

AN EARLY 20TH CENTURY MARCONI 'LINESMAN' METER. A Marconi galvanometer with silvered dial marked 'Marconi's Wireless Telegraph Company London' with screw terminals and ring carrying handle. 14cm high, 8.5cm wide.

A mahogany case Galvanometer by Nadler Bros & Co, London: together with a small galvanometer by Gambrall Bros Ltd, a GPO amp meter and a wooden rule by Aston & Mander (4)

A Pye Scalamp Galvanometer in a metal case, CAT no. 7904/T

A galvanometer in original hinged box with instructions to interior (16cm x 41cm x 19cm)

*GAMBRELL BROTHERS LTD, MOVING COIL GALVANOMETER. VERY EARLY C.20 [LQD215]

A small wooden cased sextant and a galvanometer

A large collection of early 20th century and mid 20th century electronic amp meter / electric testing equipment. The collection comprising of a Galvanometer, Cambridge Universal Test Set Pattern “ O “, D. C. Volt Ammeter, Weston Electrical Instrument Co, and many more.

A VICTORIAN EBONISED LONGCASE 'SHOP' REGULATOR INCORPORATING GREENWICH MEAN TIME GALVANOMETERArnold and Lewis, Manchester, circa 1872The substantial eight-day six double-screwed finned columnar pillar movement with plates measuring 9 by 5.125 inches enclosing wheel train with high wheel/pinion counts, six spoke wheel crossings throughout, Harrisons maintaining power and deadbeat escapement incorporating jewelled pallets, regulated by mercury jar compensated seconds pendulum incorporating wide jaw suspension, faceted glass container and hanging from a brass bracket screwed to the case backboard, the 16 inch circular cream painted dial with subsidiary seconds inscribed Regulator to apex over Roman numeral hour dial and signed ARNOLD AND, LEWIS to centre and with MANCHESTER to lower edge within outer Arabic minute track, with blued steel hands and canted brass bezel to circumference, the arched case with twin curved glass panels top over door with gilt-line decorated circular moulded glazed dial aperture interrupted by a small silvered galvanometer dial with single hand and 180 degree sector annotated 20-0-20 over inscription ARNOLD & LEWIS, GREENWICH, MEAN TIME fronting an electric coil supported within brass frame to lower margin, above further concave-topped rectangular glass panel enclosing decorative scroll-pierced brass brackets for the movement above elaborate parcel-gilt decorated scroll-pierced beat scale with red velvet lined panel behind, the sides with rectangular windows, on plinth base with quarter-round top moulding over gilt carved inscription ARNOLD LEWIS, WATCH & CLOCK, MANUFACTURERS to fascia and skirt base incorporating bracket feet with shaped apron between.210cm (82.5ins) high, 68.5cm (27ins) wide, 38cm (15ins) wide. Provenance: The Selwyn Demmy Collection. Arnold and Lewis were makers and retailers of high quality watches, clocks and chronometers who succeeded I. Simmons at 7 St. Ann's Square Manchester in 1871 where they remained until 1905. In July 1872 they installed a shop regulator with a galvinometer connected to Greenwich at their premises (designed by Edward Salomons architect) incorporating an exterior clock dial with a Greenwich style falling ball dropping at 1pm daily. This was reported in the Manchester Guardian, and no doubt provided endless publicity for the new proprietors. The current lot would appear to be that very regulator as it is fitted with a galvanometer which would be receive an electrical impulse from Greenwich every hour causing the needle to 'flick' exactly on the hour. As the 'shop regulator' the present timepiece would have served to set and check the time of watches in the showroom as well provide accurate 'Greenwich Mean Time' to the public.

Marconi's Wireless Telegraph Company Ltd. London galvanometer the signed silver dial with sweeping arrow indicator, 8.5cm x 12cmCase with surface scuffs and scratches, equipment has not been tester, back opens and closes correctly

Telegraph works galvanometer Silvertown works, London

Soviet Galvanometer, and a vintage bus route destination roll, Manfield Hospital via Town Centre to Headlands, roll width 93cm.

A box of scientific instruments. Including galvanometer, dentists drill, etc.

R W Paul horizontal Galvanometer dated 1901 housed in a leather case 

A Negretti & Zambra of London, No. E-435 galvanometer 29cm wide x 34cm high x 37.5cm deep

English, c.1910, signed to the surround of the window 'The Cambridge and Paul Instrument Co, Ltd, England' on large lacquered brass base (23cm diameter) with three screw feet, with tall black tube covering the instrument inside, height 35cm tall Note: The thermo-galvanometer is an instrument for measuring small electric currents. It was invented by William Duddell about 1900

English, c.1900, signed to the top 'Sullivan's Galvanometer, No.1113 Patented VAL DR 37 H. W. Sullivan London, on large vulcanite base with three screw feet and two spirit levels, brass cover lifts up to reveal inner workings, with removable mirror and coil assembly. height 32cm

English, c.1910, with a plaque for 'Cambridge Instruments, in a french polished mahogany cabinet with glazed door and top, large brass lacquered clockwork mechanism with keys, drum and galvanometer to rear,

1942 dated British military issue galvanometer. P&P Group 1 (£14+VAT for the first lot and £1+VAT for subsequent lots)

A box of various scientific equipment including a light sensor, scalamp galvanometer, a smoothing unit, etc.

A Galvanometer display by W.G Pye and Co Scientific instrument maker

VINTAGE OIL LAMPS & OTHER COLLECTABLES - a small set of beam scales, vintage galvanometer, repousse brass wall plaques and two brass shell cases

Galvanometer in originaler Holzkiste,signiert

3 Teile: Galvanometer, zwei Messinstrumente -Voltmeter signiert AEG

Galvanometer

Galvanometer von Siemens & Halske

Galvanometer für wissenschaftliche Zwecke

Galvanometer

Spiegelgalvanometer ”Multiflex Galvanometer” von Dr. B. Lang, Type MG2, mit Kasten

GROUP OF SCIENTIFIC INSTRUMENTS, including early 20th Century Silvertown Telegraph Co. (London) marine Galvanometer, 9cms diam in gilt brass gimbal drum case; Swiss nickel pocket watch with roman enamel dial signed Russells Ltd, Liverpool, 7-jewel lever movement, 5cms diam. with plaited leather Albert; and a Francis Barker nickel cased pocket compass, 5cms diam. (3) Provenance: Admiral Sir Edward Sotheby (1813-1892) Condition: galvanometer with damaged bakelite mount

A Collection of Scientific Instrumentsincluding a cased pocket comparator, a miniature galvanometer, galvanometer parts, a case of cuvette's for a Dubosq Colorimeter' a hand refractometer and other items

A GF Palmer of London signals box and a galvanometer. (2)

A Muirhead & Co military galvanometer - NO RESERVE

Brass & Mahogany High Sensitivity Galvanometer, English, c.1900, signed 'Cambridge Instrument Co Ltd' on cast brass base with leveling screw feet, French polished mahogany and lacquered brass cover, 33cm tall

Large Collection of Laboratory Demonstration Electrical Equipment, including, three demonstration generators, a small induction coil, a Barlow's wheel, a galvanometer mirror holder, and other items, a lot

A Large Demonstration Galvanometer & Other, c.1920, signed to the face 'A Gallenkamp, & Co Ltd, London, in polished mahogany case, with a Lindeman Electrometer by Cambridge Instruments with internal microscope in a mahogany case.