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Locomotion
National Railway Museum
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Image
Has Image
5
Non-Commercial Use
5
Category
Experimental Chemistry
5
Maker
Blake, T.O.
3
Thomas O Blake
3
Dring and Fage
1
Dring and Fage (maker)
1
Object type
hydrometer
5
hydrometer; lactometer
1
lactometer
1
Place
London
4
London, England, United Kingdom
3
London, Greater London, England, United Kingdom
1
Material
case: cardboard tube
5
glass
4
scale: paper
3
weight: mercury
2
gilt
1
mercury weight and paper scale
1
weight: lead in blue wax
1
Date
From
To
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Lactometer.
Baume hydrometer by T. O. Blake
Twaddell's No 1 hydrometer in glass
Glass hydrometer with specific gravity seal for liquids from petroleum ether to oleum
Brass latex hydrometer by Dring and Fage
circa 1950
