Watson varifocal zoom lens model 75/6.7, 1948
1948
Watson varifocal lens Model 75/6.7 (No 206), manufactured by Watson & Son, Barnet, London, England, 1948. Example of a television camera zoom lens, to fit a Pye Mark III camera. Used to film the Coronation of Queen Elizabeth II in 1953.
Thermo Vane Dial Thermometer, 1915-1925
1915-1925
Thermo vane dial thermometer (bimetallic type) supplied by W. Watson and Sons Ltd. and made by Schaeffer and Budenberg Mfg. Co., Brooklyn, New York, USA, 1915-1925.
Microsystem 70 compound binocular phase contrast microscope
1965-1970
Microsystem 70 compound binocular phase contrast microscope, with integral light source serial number 154477, by Watson, English, 1965-1970
Microscope by W. Watson & Sons Limited
1955-1959
Microscope by W. Watson & Sons Limited, London, England modified by Charles Perry and used by him for aligning the prisms for his well-known range of binocular microscope heads
Watson Zoom Lens
Watson, London. 2:1 zoom lens attachment for use with lenses of angular field up to 30º and up to 0.5". Front glass diameter. Sliding dovetail adjustment on camera bracket. Operated by rotating lens barrel; lever missing.
The 'Royal' research microscope with mahogany case
1925-1940
The 'Royal' research microscope with mahogany case, made by W. Watson and Sons Ltd., 313 High Holborn, London, England, 1925-1940. Supplied by Baird & Tatlock (London) Ltd.
Cavalry sketching board
Cavalry sketching board, early 20th century, by W. Watson & Sons Ltd., London. Used by donor's uncle in second World War to map bunker positions in S.England
Watson Regulite microscope lamp, c.1957
1955-1960
Watson Regulite microscope lamp, c.1957
Greenhough binocular stereo microscope
1925-1935
Greenhough binocular stereo microscope, serial no. 56248, in case with accessories, by W. Watson and Sons Limited, 313 High Holborn, London, England, c. 1930.
Stereoscopic research microscope
1957
Stereoscopic research microscope, Greenough type, with x1.25, x2.5 and x5 objectives and wooden arm rests, by W. Watson & Sons Limited, English, 1957
Stereoscopic research microscope
1965
Stereoscopic research microscope, Greenough type, with x1.25, x2.5 and x10 objectives and wooden arm rests, by W. Watson & Sons Limited, English, 1965
"Bactil" binocular microscope
1955-1962
"Bactil" binocular microscope, with interchangeable monocular head, in mahogany case, made by W. Watson and Sons Ltd, London, 1955-1962
Periscope no.4
1917
Periscope no.4, MK I by W. Watson & Sons Ltd., 1917, serial no.1578
Binocular microscope
1955-1970
Binocular microscope, "Bactil-60", with quadruple nosepiece, mechanical stage and integral lamp, by W. Watson & Sons Limited, English, 1955-1980
Watson's "Greenough" stereoscopic microscope
1945-1947
Watson's "Greenough" stereoscopic microscope, made by W. Watson and Sons Ltd., London, 1945-1947
Sphere-gap kilovoltmeter (incomplete)
1919-1940
Sphere-gap kilovoltmeter (incomplete), by Watson and Sons, London, 1919-1940
Watson high power research microscope with binocular head
1930-1940
Watson high power research microscope with binocular head, numbered 90120 on head, 24776 on stage, with accessories, English, circa 1930's
Monocular reading microscope
Monocular reading microscope, PRAXIS type, by W. Watson & Sons Ltd London. No. 24125.
Kima model compound monocular microscope by W. Watson and Sons Ltd.
1930
Kima model compound monocular microscope by W. Watson and Sons Ltd., serial no.46087, in case with 2 eye pieces, 2 objectives and magnification table, dated 1930.
Service microscope by W. Watson & Sons Limited
1955-1959
Service microscope by W. Watson & Sons Limited, London, England modified to take objectives upside down for aligning their components, believed to be from Watson's own workshop (the body tube has been replaced to provide an additional centred focusing draw-tube providing independent focusing to view the objective carried by the first)
Pocket brass spectroscope by W. Watson & Sons Ltd.
1908-1928
Pocket brass spectroscope by W. Watson & Sons Ltd., London, 1908-1928. Owned and used by Horace Dall, amateur astronomer and inventor.
Watson 5:1 Zoom lens Model 75 series
5:1 ratio zoom lens, W. Watson and Sons Ltd, London, with interchangeable rear elements: Model 75/6.7, for 3" to 15" focal range, Model 75/3.4, for 6" to 30" focal range, focal length adjusted by handwheel, with lock and braking device. Focal length visible through window. Focusing on front elements; Aperture adjustable f/3-22 or f/6-44. all surface coated. Lens caps. No. 125
4½-inch micrometer theodolite
1901-1950
4½-inch micrometer theodolite, no. 920, by Watson & Sons, 313 High Holborn, London, England, 1901-1950, in fitted wooden box.
Watson Model 75 Television Zoom Lens
1949-52
Watson Model 75 Television Zoom Lens, No. 117, manufactured by W Watson and Sons Limited, London, 1949-52.
'Royal' microscope No. 62547
1937
'Royal' microscope No.62547 made by W. Watson & Sons Limited, 313 High Holborn, London, England, 1937, with monocular head units, one objective and three eyepieces, all in fitted wooden case, plus additional small box containing three objective lenses (one by Watson and two by Beck) on sliding mounts.
Compound monocular microscope by W. Watson and Son Ltd.
1952
Compound monocular microscope by W. Watson and Son Ltd., serial No.103088 dated 1952, in case
Large gunsight telescope
Large gunsight telescope, no.3058, patent G340 by W. Watson & Sons Ltd., 1918, optics damaged
Mechanical microscope stage, English, 1925-1945
1925-1945
Mechanical microscope stage, in case, by W. Watson & Sons Limited, English, 1925-1945
Monocular microscope
1940-1945
Monocular microscope, with double nosepiece and fine focusing, by W. Watson & Sons Limited, English, 1940-1945
‘Service’ Metallurgical microscope, used by Horace Dall
1935-1945
‘Service’ Metallurgical microscope, Number 63403, japanned iron and brass, by W Watson & Sons Limited, London, England, 1935-1945. Part of a collection of optical instruments used by Horace Dall.
Microscope, model Bactil-60
1958-1962
Microscope, model Bactil-60, with interchangeable monocular and binocular heads, quadruple nosepiece and mechanical stage, by W. Watson & Sons Limited, English, c.1960
Watson quarterplate stand camera outfit
1900
Stand camera for 3 1/4 x 4 1/4 inch plates. Fitted with a Watson F:4 inches revolving disc with four stops (wide angle lens for 4 3/4 x 6 1/2 inch camera ); a Watson F: 6 1/2 inches f/8-44 No.823 (for 5 x4); a Ross anastigmat F: 135mm 5 3/8 inches f/8-64, No. 4288 Zeiss Patent; a Watson F:11 inch rapid rectilinear f/8-64 No.4042( for 8 1/2 x 6 1/2 inches); A Dallmeyer telephoto attachment 2 1/2 inch focus, rack and pinion extension. With focusing screen magnifier. Rack and pinion focusing, double extension. Sliding rising front. Swing back. Reversible back with swing out focusing screen. Ball level. No. 9807. W Watson and Sons.
Clear glass bottle with wooden stopper containing pale gold lisge
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."
Stereo-projector comparator, British, 1915
1915
Stereo-projector comparator in leather case and 12 slide rails by W. Watson & Sons Limited, 313 High Holborn, London, England, 1915.
Howells ventilator apparatus prototype
1950-1960
Howells ventilator apparatus prototype, made by Watson of Barnet, England, 1950-1960
Howells ventilator apparatus prototype
1950-1960
Howells ventilator prototype, developed by Thomas H Howells at General Barnet Hospital, London, 1950-1960
Microscope accessories by various makers, c.1940
1880-1950
Microscope accessories by various makers, c.1880-1950. Includes a stage condenser, objectives, micrometers, filters and lids for microscope lenses and objectives.
Howells ventilator apparatus prototype
1950-1960
Howells ventilator apparatus prototype, made by Watson of Barnet, England, 1950-1960
Dental x-ray set
1920-1929
Dental x-ray set, by W. Watson and Sons Limited, London, England, (power and control unit and tube stand), 1920-1929.
Illuminator, condenser, vertical, on bayonet catch
Illuminator, condenser, vertical, on bayonet catch
Objective, holoscopic, 12mm. in cannister
Objective, holoscopic, 12mm. in cannister, W. Watson & Sons Limited, 313 High Holborn, London, England.
Condenser, substage
Condenser, substage, on dovetail
Condenser, substage
Condenser, substage, holoscopic oil immersion, on dovetail
Objective, immersion
Objective, immersion, holoscopic oil, in cannister
Microscope lamp
1950-1965
Microscope lamp, by Wadden Instruments Ltd., supplied by W. Watson & Sons Limited, English, 1950-1965
Photomicrographic equipment
1920-1940
Photomicrographic equipment, comprising 2 optical benches and 1 plate camera, by W. Watson & Sons Limited, English, 1920-1940
Objective, apochromatic
Objective, apochromatic, 16mm, in cannister
Watson stand plate camera
1890
Watson stand plate camera, made by W. Watson and Sons. Bellows camera for 3 1/4 x 4 1/4" plates. No lens. Sliding rising and cross front. Swing back. Rack and pinion focussing, working back. In lined case by Dallmeyer, with three wooden bookform double darkslides. Tripod head.
15 x 12" plate camera made by W. Watson & Sons Ltd
15 x 12" plate camera made by W. Watson & Sons Ltd, 313 High Holborn, London. New Patent model, sold by W. Morley, 70 Upper Street, London. With TTH lens No. 16760, 12 x 10 RR Eq. focus. 16"; f8 - 64 iris diaphragm. Rising front (sliding) swing front. Dou
Watson snap shutter
Ebonite shutter flap slides up and down actuated by linkage to brass slider, powered by rubber band. 21mm diameter aperture. NO. 1079. W. Watson and Sons.