Instruments

Projectile trolley

A'dam J.Kampman and Adam Steitz, 1750 - 1774

Resonance Oak block etc.

after Savart Koenig

Locomotive whistle

Paris Rudolph Koenig

Siren

Paris Deleuil

Double siren, after Helmholtz

Berlin F. Sauerwald

Blaasbalg

Paris A. Cavaille- Coll Fils

Organ pipe; slider in middle

Paris R. Koenig, 1850 - 1874

Organ pipes, 'UT3' and 'RE3'

Paris R. Koenig, 1850 - 1874

Organ pipe 'FA2'

Paris R. Koenig, 1850 - 1874

Organ pipe 'UT4'

Paris R. Koenig, 1850 - 1874

Organ Pipe 'FA4'

Paris R. Koenig, 1850 - 1874

Reed pipe

Paris R. Koenig, 1850 - 1874

Permanent magnets

Philips Lab. Eindhoven

Tamborine

Paris R. Koenig

Bell with adjustable resonator

Haarlem W.M. Logeman

Phonautograph, after Leon Scott

Parijs R. Koenig, 1865

Tuning forks for Lissajous' figures

Paris Lerebours et Secretan

2 Clamps for tuning forks

Paris R. Koenig

Permanent magnets

Eindhoven Lab. Philips

Telephone, after Reis

Johann Philipp Reis

Section of telephone, after Bell

Paris 1880? Ducretet

Telephone set, after Bell

Paris E. Maldant

Two coupled Gower-Bell telephones

London General Telephone Company

Photometer, after Wheatstone

Londen Elliott Brothers, circa 1860

Photometer

Parijs J.G. Hofmann, circa 1870

heliostat

1750 - 1774

Heliostat, after Klinkerfues

Göttingen Meyerstein, 1865