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Box of "Argentic" silver nitrate caustic points

1925-1940

Veterinary thermometer, England, 1950-1978

1950-1978

"Silent Six" electric extractor fan in brown phenolic plastic self-contained unit for window mounting

1934-1938

Original packaging for the `Sylentflo' Electric Hair Dryer

1945-1965

Standard Exposure Calculator

1920-1940

Moving coil galvanometer

1937

Floodlight, pressurised paraffin, as used by British Rail Permanent Way gangs during night working, District Engineer's dept., York, by Tilley Ltd., Hendon, 1945-1965.

British Rail permanent-way floodlight

1945-1965

`Sylentflo' Electric Hair Dryer, MK. II- Ivory, (230V-250V, 400W, No.9987) by Fractional H.P. Motors Ltd., Hendon, London, England, 1945-1965

`Sylentflo' Electric Hair Dryer

1945-1965

Bottle of silver nitrate, by Johnsons of Hendon Limited, London, NW4, England.

Bottle of silver nitrate

Mercury thermometer, scale 10-115 degrees centigrade, by F. W. Johnston and Daughter, Hendon, 1950-1978

Mercury thermometer

1950-1978

Deckle-edger by Johnsons of Hendon, manufactured by Vale Engineering Co. (Chertsey) Ltd., England

Deckle-Edger by Johnsons of Hendon

Exposure calculator, plastic, case enclosing indented dial. Johnson Artificial Light Calculator

Exposure calculator

Johnson Junior Printing Pack manufactured by Johnsons of Hendon Ltd. 1961

Johnson Junior Printing Pack

1961

Moving coil galvanometer

Everett, Edgcumbe and Company Limited moving coil galvanometer

1930

Johnson See-Thru Printing Masks. Two packets of three 2 1/2 x 3 1/2" with 2 1/4" apertures, masks with circular, square, and square with rounded corners.

Johnson See-Thru Printing Masks. Two packets of three 2 1/2 x 3 1/2" with 2 1/4" apertures

Bottle of white ink for titling photographs and lantern slides.

Johnson white ink

Six colour glass filters in original packing; 21mm, 23mm, 25mm, 28mm, 33mm, 38mm.

Johnson Precision Colour Filters

Set of three masks size 2 1/2 x 3 1/2 inches - oval, rectangular, square and rounded corners. Set of three masks size 2 1/4 x 2 1/4 inches in round and square. Johnsons of Hendon.

Johnsons' See-thru Printing Mask

Fixed focus enlarger for printing postcards from negatives up to 3 1/4 x 2 1/4". In original box with instructions.

Johnson Exactus Postcard Printer

24mm push-on lens hood, in original carton.

Johnson Precision Lens Hood

Johnsons of Hendon. Sizes up to 2 1/2 x 3 1/2 inches. In original carton.

Johnson Plastic Printing Frame

. Metal box with wooden paper holder. Circular aperture with yellow tinted glass and three segments of different densities

Johnson Three-Tint actinometer

Johnsons of Hendon. Developing tank with transparent spiral, adjustable for: 16mm, 35mm (1x36 exp, 2x20 exp), 127 (1 or 2), 120 (1 or 2), 116. In original carton.

Johnson Roto-Two developing tank

Cardboard folding white reflector and Photolux flashbulb holder for fitting to torch. In original packing with carton of Photoflux lamps (bulbs missing). Card tube. Silvered paper wrapping. With instructions.

Johnson Indoor Photography Outfit

Programme [for] Royal Air Force Pageant, Hendon [on] June 28th, 1930. [4p.]

Programme [for[ Royal Air Force Pageant, Hendon [on] June 28th, 1930

1930

Programme [for] Royal Air Force Aerial Pageant ... Held at the London Aerodrome, Hendon ... [on] June 30th, 1923. [32p.]

Programme for Royal Air Force Aerial Pageant ... Held at the London Aerodrome

1923

[Programme for the] Thirteenth Royal Air Force Display [at Hendon Aerodrome on 25 June 1932. 68p. Includes detailed ground plan of the aerodrome]

[Programme for] The thirteenth Royal Air Force display [at Hendon Aerodrome on 25 June 1932]

1932

4oz bottle of reducing solution. Johnson and Sons.

Johnson's reducer

Johnson mains contact printer.

Johnson Contact Printer

Mercury thermometer, probably for physiological application, scale 90-113 degrees fahrenheit, by F. W. Johnston and Daughter, Hendon, 1950-1978

Mercury thermometer

1950-1978

"Swinglite" lighting system by Johnsons of Hendon, c. 1960

"Swinglite" lighting system by Johnsons of Hendon

1960

Small flash containing 15 grains of gold chloride. Johnson and sons

Gold Chloride

Two boxes of self-adhesive photo mounts made at 93 Church Road, Hendon

Arrowmounts

1958-1960

Spiral rollfilm developing tank adjustable for 120, 127, 116, and 35mm. Black bakelite. Johnsons of Hendon.

Johnson's Adjustable Developing Tank with Carton and Instructions

One ounce tin of Johnsons No 2 flash powder for outdoor work. Packet of touch paper. Johnson and Sons.

Johnson's Flash Powder Outfit with Instructions

Neutral litmus paper, from the portable laboratory owned by Dr. H.G Butterfield, by Johnson and Sons, Hendon, London, 1930-1940

Neutral litmus paper

1930-1940

Exposure calculator, made of cream plastic, circular case, enclosing indented dial. Made by Johnson

Exposure calculator

[Programme for] Grand Aerial Fete and Battle of Flowers [at] London Aerodrome, Hendon [on] July 24th, 1913 / Grahame-White Aviation Co. Ltd. [4p.]

Programme for Grand Aerial Fete and Battle of Flowers [at] London Aerodrome

1913

Official programme [for] the first air race Oxford v. Cambridge and the sixth aerial Derby at the London Aerodrome, Hendon on ... 16th July, 1921 / Royal Aero Club of the UK. [24p. Includes details of all the meeting's officials; a map of the Derby course; a list of owners, pilots, machines, etc.]

Official programme [for] The first air race Oxford v. Cambridge and the Sixth Aerial Derby at the London Aerodrome, Hendon on ... 16th July, 1921

1921

Official Programme [for] Second Summer Meeting [at] The London Aerodrome, Hendon [on] July 19th, 1913 / Grahame-White Aviation Co. Ltd. [20p. Includes photo of Norman C. Spratt, and a profile of him by Charles G. Grey, editor of Aeroplane; details of the meeting's officers; list of aviators and their machines, etc.]

Official Programme for Second Summer Meeting [at] The London Aerodrome

1913

Nitrogen filled mercury thermometers, glass, scale 0-400 degrees centigrade, by F. W. Johnston and Daughter, Hendon, 1950-1978

Nitrogen filled mercury thermometers

1950-1978

Nitrogen filled mercury thermometer, glass, scale-5-50 degrees centigrade, by F. W. Johnston and Daughter, Hendon, 1950-1978

Nitrogen filled mercury thermometer

1950-1978

Clenical mercury thermometer, uncalibrated, glass by F.W. Johnston and Daughter, Hendon, 1950-1978

Clenical mercury thermometer

1950-1978

Exposure calculator, colour & cine, plastic case enclosing plastic indented dial. Made by Johnson

Exposure calculator

Three 2 1/2 x 3 1/2 transparent red masks; oval, rectangular and rectangular with rounded corners.

Johnson See-Thru printing mask

Johnsons of Hendon Ltd, London. Spiral developing tank adjustable for size 116, 120, 127, 35mm and 16mm filmsl spring locked in each position. Black bakelite; in orginal carton with instructions.

Johnson Universal Adjustable Developing tank

Johnsons magnesium ribbon in original packet.

Johnsons magnesium ribbon in original packet.

Johnson & Sons, Hendon, London NW4. Lead foil covered packet of developer powder.

Johnson's Metol Quinl developer

Johnson's Holborn electric light cover. Deep ruby glass jar with metal screw cap fitted with bayonet lampholder.

Beehive type glass safelight

Johnson Precision Lens Hood 42. In original carton, 42mm.

Johnson Precision Lens Hood 42. In original carton

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