This device consists of a brass cylinder with capsule. Above the opening in this capsule is ...

Measurement: Sensory (auditory) perception. Instrument for determining the discrimination threshold of the pitch. Physical description: This device ...

Measurement: Instrument for investigating motor fatigue. This is part of the 'Mosso Ergograph' (the 'appareil d'immobilisation') ...

This instrument consists of two red wooden columns with a metal lamella. Mirrors are attached to ...

A 1000-watt lamp can be adjusted in height and width by rotary knobs at the back ...

A wooden viewing box has an opening at the front and top. Inside is an oblique ...

This eye muscle model consists of two wooden spheres about twice the diameter of the eye. ...

Measurement: Sensory (auditory) perception. Instrument for examining timbre. Operation: A series of wooden pipes are supplied with ...

The tubes are numbered. They are stored in a wooden box, on which has been written ...

This tube amplifier was presumably used as a sound amplifier in a large auditorium [Roland Reekmans].

Cassette recorder in a wooden case. There is a manual on the inside.

3M data cartridges for cassette recorders.

The chronograph consists of a powerful electromotive drive mechanism (external) that moves the higher of two ...

This model of chronograph consists of two drive rollers (in the centre of the unit), a ...

The Hipp chronoscope is a mechanical chronometer that obtains energy from a weight. Its course is ...

A millimetre scale is mounted on one of the curved legs of this compass. The screw ...

Commodore

Commodore, CBM model 3040 dual drive floppy disk.

Computer part: black rectangular container with 5 outputs at the top and 2 outputs on the ...