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Filings coherer, glass tube capped at ends, 1894-1904

Radio Communication

1894-1904

Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899

Radio Communication

1899

Filings coherer, glass tube bent at 45-degree angle at one end to form side-pocket, 1898

Radio Communication

1898

Filing coherer, glass tube, fitted on to mounting bracket with terminals, 1894-1904

Radio Communication

1894-1904

Foot x-ray photograph taken by George Hugh Gabb

X-rays

1896-02-15

22 volt ringing generator

Telecommunications

1896

Two-pin electrical mains plug

Therapeutics

1900-1910

Necklet to cure sore throats

Ethnography and Folk Medicine

1914

Trephine used in experiments on Neolithic trephination

Surgery

1918-1920

Amuletic pendant in form of moulded metal slipper

Ethnography and Folk Medicine

1900-1913

Hand x-ray photograph taken by George Hugh Gabb

X-rays

1896-02-15

Case for 'Tabloid' first aid kit used by Alcock and Brown

Materia Medica & Pharmacology

1919

Box magazine camera

Photographic Technology

c.1900

Oval gilt and enamel lapel badge, worn by a delega

Wellcome Medals

1901

Air pump

Telecommunications

c.1920

dye sample

Industrial Chemistry

c.1890

dye sample

Industrial Chemistry

c.1890

Enamel notice, Dinorwic Quarries Railway

Railway Infrastructure

1895

De Forest syntoniser, 1902-1907

Radio Communication

1902-1907

Radio tuning coil No. 75, 1922-1923

Radio Communication

1922-1923

Radio tuning coil No. 150, 1922-1923

Radio Communication

1922-1923

Burndept mark IV tuner with glass back, 1922-1923

Radio Communication

1922-1923

Two bar magneto Wood wall telephone

Telecommunications

1904

Cossor Wurncell W.1 output triode valve (McVitie Weston valve collection), 1923

Electronic Components

1923

Filings coherer, small glass tube with bulb at one end, 1894-1904

Radio Communication

1894-1904

Filings coherer, glass tube, 1898

Radio Communication

1898

Filings coherer, Lodge-Muirhead system, 1900-1910

Radio Communication

1900-1910

Filings coherer, glass tube curved into near U-shape at one end with coil winding at other end, 1894-1904

Radio Communication

1894-1904

Filings coherer, glass tube almost of taper shape, 1894-1904

Radio Communication

1894-1904

wooden pap boat

Nursing & Hospital Furnishings

1900-1920

Filings coherer, Lodge-Muirhead system, 1900-1910

Radio Communication

1900-1910

Coherer, with several needles, 1894-1904

Radio Communication

1894-1904

Filings coherer, Lodge-Muirhead system, 1900-1910

Radio Communication

1900-1910

Model of Robert Duncan's screw propeller, with stern frame and rudder, as fitted to the Egyptian government yacht 'Sareea

Marine Engines

1886-1887

Tube of bismuth salicylate tablets

Materia Medica & Pharmacology

1919

Electric hairbrush

Therapeutics

1896-1900

Glassware from Carrel's apparatus for sterilizing wounds

Surgery

1914-1918

Thorpe 4-electrode valve (McVitie Weston valve collection) 1924

Electronic Components

1924

Photographic print of early x-ray

X-rays

1896-1900

Wrapping Block

Textile Industry

c. 1920

Biunial lantern slide projector

Photographic Technology

c.1900

dye sample

Industrial Chemistry

c.1890

Section of Distribution Frame

Telecommunications

1922

Creda No 762 electric toaster with open element. N

Domestic Appliances

1914-1920

Public telephone sign

Telecommunications

c.1915

Radio tuning coil No. 100, 1922-1923

Radio Communication

1922-1923

Radio tuning coil No. 500, 1922-1923

Radio Communication

1922-1923

Radio tuning coil No. 200, 1922-1923

Radio Communication

1922-1923

Hand-held stereoscopic viewer

Photographic Technology

c.1896

Filings coherer, glass tube bent into U-shape at one end, 1894-1904

Radio Communication

1894-1904