Thermometers - Antique and Vintage Cameras

Watkins Time Thermometer

1909

Watkins Meter Co.

Hereford

England

Image of Watkins Time Thermometer

Four examples.

The Time Thermometer is for use with the Watkins Thermo method of development. After diluting the developer to the correct amount according to the plate type and developer, the development time can be read directly from the height of the mercury. The scale is applicable for developers having a Temperature Coefficient of 1.9 and is marked: Pyro-Soda; Metol Quinol; Watkins Time Developer; Rodinal; Certinal; Azol and Victol. Versions for Rytol and Kodol developers and Autochrome plates were also advertised. Production ceased during World War I but recommenced around 1920.

With:
Tube.

References & Notes:
BJA 1910, pp. 25, 627. Watkins Manual 1911. Relates to BP 22456/1907.

Ilford Dish Thermometer

Ilford Ltd

Ilford

England

Scale: 40 - 80° F, 5 - 25° C. 8 ¼" length.

Talco Photographic Thermometer

Morecambe Photographic Services Ltd

Morecambe

England

Scale: 40 - 90° F. 5" length in metal case. The case can be reversed to form a handle. 1940s.

Thermometer

Scale: 50 - 90° F. Alcohol. 5 ¾" length in metal case.

With:
Box.

Thermometer

James A. Sinclair & Co. Ltd

London

England

Scale: 40 - 90° F. Alcohol. 5" length in metal case.

Notes:
Whitehall address.

Azol and Vedol Thermometer

c. 1922

Johnson & Sons Manufacturing Chemists Ltd

London

England

Image of Azol and Vedol Thermometer

With:
Cream box.

Similar thermometers were sold for a number of years by Johnson under different names, this example probably dates to the 1920s.

References & Notes:
AP 23/8/1922, p. 156.

Eastman Thermometer

Kodak Ltd

London

England

Image of Eastman Thermometer

Small mercury thermometer attached to metal surround. Scale marked 60, 65 70 F. Kingsway address.

With:
Red/yellow box.

The scale changed over time, this example has a reduced range of figures and probably dates to the 1940s. Available in Centigrade or Fahrenheit.

Paterson Thermometer

Paterson

England

Mercury thermometer 9" long, in polystyrene box.

Darkroom Equipment

Darkroom Lamps

Granitine

Developing

Developing - Plate Tanks

Developing - Roll-Film Tanks

Fixing, Washing & Measures

Watkins Calculator

Timers & Clocks

Retouching Equipment

Print Meters

Print Meters - Electric

Focus Finders & Magnifiers

Enlargers - Box Form

Enlargers

Contact Printers

Vignettes & Masks

Printing and Masking Frames

Transposing Frames, Printers

Colouring

Print Trimming & Glazing

Print Mounting

Thermometers

Johnson Outfits

Miscellaneous