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Johann Bohack ca.1785 Fortepiano (Vienna)
Attr. Pierre Ruelle 1736 Harpsichord (Paris)


J.W. Berner ca.1797 Tangentenflügel (Hamburg)
Attr. Henrion Fortepiano ca.1790 (Saarland)


Franz Joseph Wirth ca.1790 (Augsburg)

Gosset Harpsichord 1779 (Reims)

Carlo Arnoldi ca.1775 (Rome)
Sodi 1777 Harpsichord (Florence)


Rolando Maior 1771 Harpsichord (Turin)


Jakob Weimes 1803 Fortepiano (Prag)

Anon. Stein School Fortepiano ca.1800 (Strasbourg?)

Longman & Broderop ca.1789 Harpsichord (London)

Tiefenbrunn 1789 Clavichord (Copenhagen)

Joahnn Schanz Fortepiano ca.1803 (Vienna)

Matthias Müller ca.1804 (Vienna) belonged to the Italian composer Antonio Miari (1778-1854)

Maucher ca.1780 Pantalon (Konstanz)

Anon. ca.1770 Pantalon (South Germany)

Münzenberger ca.1805 Fortepiano (Vienna)

Buntebart Square Piano *Signed by J.Ch. Bach* 1780 (London)

Tomkison Fortepiano ca.1808 (London)
J. L. Hellen ca.1765 Square Piano (Bern)


Erard 1805 Square Piano (Paris)

Giovanni Heichele ca.1812
Fortepiano (Triest)

Johann Schanz ca.1822 (Vienna)

Schiffmann Square piano ca.1785 (Dusemond/Brauneberg)

Christian Baumann ca.1785 Square Piano (Zweibrücken)

Christian Baumann ca.1795 Square Piano (Zweibrücken)
Anton Walter & Sohn ca.1810 (Vienna)
Hampo ca.1812 Fortepiano (Vienna)


Georg Geib ca.1785 Square Piano (Frankenthal)


Gottfried Malleck ca.1790 (Vienna)
Anon. Square Piano ca.1800 (Germany)
Bösendorfer 1842 (Vienna)




Tobias Schmidt (Maker of the Guillotine in 1792) Square Piano 1792 (Paris)

Franz Lautterer ca.1820 (Vienna)

Clementi ca.1820 *Reverbation bridge Patent* (London)

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Melchior Guante Square Piano ca.1800 (Münster)

Anon. Square Piano
(belonged to Carl Holsøe)


Josef Angst ca.1827 (Vienna)

Johann Fritz Square Piano ca.1828 (Vienna)

Anon. ca.1790 (Milano?)

Charles Trute ca.1780 Square Tangent Piano (London)

Anon. Friedrick Wieck Shop Square Piano ca.1835


Pleyel 1849 Pianino (Paris)
John Geib (Longman & Broderip) 1787 (London)

John Geib (Longman & Broderip) 1791 (London)

Poussot Monocorde à Clavier ca.1880 (Paris)

Zumpe Square Piano 1777 (London)


Christoph Ganer 1780 (London)

Carl Fuchs Physharmonica ca.1830 (Vienna)
Fratelli Ponti 1801 (Milano) (Second one)

Fratelli Ponti 1801 (Milano)

Anon ca. 1780 (South Germany)

Mercken 1785 (Paris)
Johann Philip Heil ca.1797 (Seeheim)




Mercken 1785 (Paris)
Johann Philip Heil ca.1797 (Seeheim)

Erard 1789 Square Piano (Paris)

Martin Müller ca.1804 (Vienna)


Anon. Square Piano ca.1795 (Elsass)
Zimmermann Square Piano ca.1798 (Paris)


J.Howard ca.1790 (Bern)
Woffington ca.1785 (Dublin)


Woffington ca.1785 (Dublin)
Zimmermann Square Piano ca.1803 (Paris)



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