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Kima model microscope and accessories by W. Watson and Sons Ltd.

Kima model microscope and accessories by W. Watson and Sons Ltd.

1937
Heliostat, contrived by the late G. Johnstone Stoney

Heliostat, contrived by the late G. Johnstone Stoney

1895
Polarizing microscope by W. Watson and Sons

Polarizing microscope by W. Watson and Sons

1882-1908
Wenham binocular microscope with Crossley's illumination tailpiece

Wenham binocular microscope with Crossley's illumination tailpiece

1875-1900
Stage micrometer by W. Watson and Sons Ltd.

Stage micrometer by W. Watson and Sons Ltd.

1871-1900
Spectrometer, fitted with replica of Rowlands grating

Spectrometer, fitted with replica of Rowlands grating

1905-1907
Compound monocular microscope

Compound monocular microscope

1890-1908
Microscope, made by Watson

Microscope, made by Watson

1850-1900
Simple dissecting microscope by Watson

Simple dissecting microscope by Watson

1867-1882
The Watson Steroscopic Binocular Camera

The Watson Steroscopic Binocular Camera

1900
Linear brush electrode

Linear brush electrode

Oil lamp for microscopy

Oil lamp for microscopy

1885-1900
Drawing prism for use with microscope

Drawing prism for use with microscope

1887
Hammer break interrupter

Hammer break interrupter

Watson Penetrator Tube

Watson Penetrator Tube

1906-1916
Watson and Sons, Right Angle Prism

Watson and Sons, Right Angle Prism

Watson Holos paraboloid system, c. 1930

Watson Holos paraboloid system, c. 1930

1921-1950
Stage, pillar and inclining prism

Stage, pillar and inclining prism

1871-1900
Stereo-plotter designed by F.V. Thompson

Stereo-plotter designed by F.V. Thompson

1908
Box for stereo-plotter

Box for stereo-plotter

1908
Binocular microscope no.1925 (the 'Draper')

Binocular microscope no.1925 (the 'Draper')

1875-1890
Box and accessories for 'Bactil' research microscope

Box and accessories for 'Bactil' research microscope

1948
Magic Lantern

Magic Lantern

Ives 3-colour camera and projector by W. Watson & Son

Ives 3-colour camera and projector by W. Watson & Son

1893
Spectrometer eye piece mount flange and retaining bracket

Spectrometer eye piece mount flange and retaining bracket

1905-1907
Camera lucida

Camera lucida

'Bactil' research microscope

'Bactil' research microscope

1948
"Service" Model microscope no.27178 by W. Watson and Sons Ltd.

"Service" Model microscope no.27178 by W. Watson and Sons Ltd.

1920-1930
Early x-ray tube by W. Watson & Sons

Early x-ray tube by W. Watson & Sons

1896-1904
Fluorescent screen by W. Watson & Sons

Fluorescent screen by W. Watson & Sons

1896-1904
Stereo-plotter designed by F.V. Thompson

Stereo-plotter designed by F.V. Thompson

1906
"Van Heurck Grand Model" microscope by W. Watson and Sons (No.8063) in mahogany case with accessories in oak cabinet

"Van Heurck Grand Model" microscope

1895-1905
Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908.

Wimshurst machine

1901-1908
'Bactil' research microscope, steel and brass, with some accessories, in mahogany case, by W. Watson and Sons Ltd., 313 High Holborn, London, England, 1948.

'Bactil' research microscope

1948
Spinthariscope, in cardboard fitted case, marked "Spinthariscope, W. Crookes 1903. W. Watson & Sons, 313 High Holborn, W.C.".

Spinthariscope, in cardboard fitted case

1903
Binocular microscope serial no. 1764 by Watson and Sons, 313 High Holborn, London, in wooden case, 1882-1900. Supposedly owned by William Quekett (1802-1888).

Binocular microscope serial no. 1764 by Watson and Sons

1882-1900
Watson cabinet stereoscope viewer for 107x44mm stereographs. Manufactured by

Watson Cabinet Stereoscope Viewer

Clear glass bottle with wooden stopper containing pale gold lisge. Printed paper label reads: "Watson & Sons' micro-chemical preparations. Pale Gold Lisge. W. Watson & Sons, Ltd. Opticians, 313 High Holborn, London."

Clear glass bottle with wooden stopper containing pale gold lisge

Stereoscopic microscope serial no 115397 by W. Watson and Sons Ltd of London, in case, 1951 to 1960

Stereoscopic microscope serial no 115397 by W. Watson and Sons Ltd of London

1951-1960
X-ray tube, used by Sir Arthur Hurst, by W. Watson and Sons, 313 High Holborn, London, England, 1918-1920.

X-ray tube

1918-1920
8 accumulators for high frequency cabinet, supplied by W. Watson & Sons, London, 1903

8 accumulators for high frequency cabinet

Electrode holder with glass handle, English, 1903

Electrode holder with glass handle, English, 1903

1903
Microscope, made by Watson, late 19th century with holoscopic objective “10” eye lens.

Microscope by Watson late 19th Century

1850-1900
Glass X-ray tube, supplied by W. Watson and Sons

Glass X-ray tube

Ten pieces of broken Wimshurst discs, from Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908

Broken disc from Wimshurst machine

1901-1908
Component, rectangular object with crank handle, of Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908

Component of Wimshurst machine

1901-1908
Component, with wheel, of Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908

Component of Wimshurst machine

1901-1908
Component, possibly electrode, of Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908

Component of Wimshurst machine

1901-1908
Rod with electrode on top, component of Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908

Component of Wimshurst machine

1901-1908
Metal plate, from Wimshurst machine, in cabinet, badly broken, by Watson and Sons, 313 High Holborn, London, England, 1901-1908

Metal plate from Wimshurst machine

1901-1908