Search our collection

Clear all filters
Image
Category
Collection
Object type
Material
Maker
Place
Date
Fahrenheit thermometer

Fahrenheit thermometer

1826-1854
Mercury bath thermometer

Mercury bath thermometer

1800-1899
Bishop Harman photometer

Bishop Harman photometer

1880-1920
X-ray Power Supply

X-ray Power Supply

Push-pull switch

Push-pull switch

Qualitone audiometer with instruction manual, made by the Qualitone Company, Minneapolis, U.S.A., 1960-1965.

Qualitone audiometer with instruction manual

1960-1965
Artificial respiration machine, by L.M. Miller, London, English, 1937

Artificial respiration machine

Brassard iron top piece, supporting crushing assembly between pillars

Brassard iron top piece

Wood-encased clock with brass time switch mounted in glass case above, part of the "Early Morning Waiter" automatic tea-making machine invented and built by Ron Grumble, London, 1930

Wood-encased clock with brass time switch mounted in glass case above

1930