


Aneroid Barometer, graduated in millibars, for use at sea

Double balance pressure step valve, sectioned

One Ayrton-Perry voltmeter

One Tucker hot-wire microphone

Latest type model of sunshine recorder

Portable battery of 3 lead accumulator cells with reticulated grid plates

Bernay's Positive Water Meter
1895

One sectioned 2 HP induction motor with cast aluminium squirrel cage motor

Stone 14 1/2 lbs Av. weight, for weighing chain and nailmaker's work

'Kombi' Early Miniature Camera
1895

Neck-forming tool, for Codd bottles

Solar microscope "O.N. Degerman. Fecit 1756"

Stone 5 lb 14 oz Av. weight, for weighing chain and nailmaker's work

Stone 1 lb 1 oz Av. weight, for weighing chain and nailmaker's work
exhibit showing an artificial rainbow.
One 132 kV condenser type outdoor bushing with mounting tank
Bates machine for engraving
Photographs, mounted on one card
One exhibit illustrating the reflection of light
Mason's plumb bob & line.
One panel exhibit: Illuminated diagram of the manufacture of coal gas and its by-products
One busbar selector switch
One set comprising 5 pieces each 2" square
Two examples of Bocking Protractors
Five seismograms obtained on observation line over a salt dome
One Waverly typewriter
One screen-grid condenser for Metro-Vick demountable tetrode
One Musgrave hot air coke-fired heating frame, c.1901
circa 1901