A B C D E F G H I J K L M N O P Q R S T U V W Z

Officine Galileo, Firenze, Italy
Hoffmann Voltameter
Siemens type D’Arsonval Galvanometer
Mobile coil galvanometer with mirror
Weston type galvanometer

Portable Voltmeter with rectifier cell
Weston type voltmeter
Weston type millivoltmeter
Weston type milliamperometer
Recording cylinder

Pacinotti, Pisa, Italy
Commutator

Pfeiffer, Wetzlar, Germany
Twin cylinder Gerike pump

Pierucci, Pisa, Italy
Cagnard de La Tour syren
Two pipes for the Tartini sound
Seven pipes for the third octave scale

Open flute with keys
Open tube with crystal and three manometric flames

Pixii, Paris, France

Leslie Thermoscope