Horn;Valve Horn
- Place of production:Germany
- Date of production:prob. early 20th century
- Collection:Bate Collection, Oxford
Horn
- Place of production:France, Paris
- Date of production:early 20th century
- Collection:Bate Collection, Oxford
Horn;Posthorn
- Place of production:UK, England
- Date of production:20th century
- Collection:Bate Collection, Oxford
Horn;Trompe Militaire
- Place of production:France, Paris
- Date of production:20th century
- Collection:Bate Collection, Oxford
Horn;Trompe Militaire
- Place of production:France, Paris
- Date of production:20th century
- Collection:Bate Collection, Oxford
French Horn
- Place of production:UK, England, London
- Date of production:first half 20th century
- Collection:Bate Collection, Oxford
French horn.
- Place of production:Ludwigsburg.
- Date of production:1901-18
- Collection:Royal Conservatoire of Scotland
Post horn.
- Place of production:
- Date of production:Probably 20th century
- Collection:Royal Conservatoire of Scotland
Side-blown horn
- Place of production:Africa
- Date of production:first half of 20th century
- Collection:Swindon Museum & Art Gallery
Post horn
- Place of production:London (Timezone: Europe/London)
- Date of production:first half of 20th century
- Collection:Museum of Army Music
Fürst-Pless horn
- Place of production:Germany (?)
- Date of production:first half of 20th century
- Collection:Museum of Army Music
Side-blown horn
- Place of production:Sepik
- Date of production: early 20th century
- Collection:Horniman Museum and Gardens
Post horn.
- Place of production:Birmingham.
- Date of production:Probably 1903
- Collection:Royal Conservatoire of Scotland
French Horn. Compensating double. Nominal pitch: F + B♭.
- Place of production:Erfurt/Germany
- Date of production:1906-1919
- Collection:University of Edinburgh
Single horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1906
- Collection:Museum of Army Music
Double horn. Nominal pitch: F+B♭.
- Place of production:Paris/France
- Date of production:Circa 1914
- Collection:University of Edinburgh
Horn in E?
- Place of production:London (Timezone: Europe/London)
- Date of production:
- Collection:Market Lavington Museum
Orchestral valve horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1910
- Collection:Horniman Museum and Gardens
Post horn.
- Place of production:Chicago.
- Date of production:1910-50
- Collection:Royal Conservatoire of Scotland
Side-blown horn
- Place of production:Abong Mbang (Timezone: Africa/Douala)
- Date of production:1911–36
- Collection:Saffron Walden Museum
Side-blown horn
- Place of production:Abong Mbang (Timezone: Africa/Douala)
- Date of production:1911–36
- Collection:Saffron Walden Museum
Horn, railway worker
- Place of production:
- Date of production:c.1917
- Collection:National Army Museum
Valved horn. Nominal pitch
- Place of production:Paris/France
- Date of production:1913
- Collection:University of Edinburgh
French horn in F
- Place of production:London (Timezone: Europe/London)
- Date of production:c.1919
- Collection:Birmingham Conservatoire
Horn
- Place of production:London (Timezone: Europe/London)
- Date of production:c.1919
- Collection:Birmingham Conservatoire
Single horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1914–24
- Collection:Museum of Army Music
French Horn
- Place of production:
- Date of production:1920
- Collection:National Trust for Scotland, Canna House
French horn
- Place of production:Milan (Timezone: Europe/Rome)
- Date of production:After 1920, probably c|1930
- Collection:Royal Conservatoire of Scotland
Single horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1920
- Collection:Museum of Army Music
French horn.
- Place of production:Paris.
- Date of production:1921
- Collection:Royal Conservatoire of Scotland
Single horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1921–3
- Collection:Museum of Army Music
French horn
- Place of production:Paris (Timezone: Europe/Paris)
- Date of production:1922
- Collection:National Army Museum
French horn in F
- Place of production:London (Timezone: Europe/London)
- Date of production:c.1929
- Collection:Birmingham Conservatoire
Orchestral valve horn
- Place of production:London (Timezone: Europe/London)
- Date of production:circa 1930
- Collection:Horniman Museum and Gardens
Horn
- Place of production:United Kingdom
- Date of production:1925
- Collection:Manx National Heritage
Hand horn, formerly valve french horn.
- Place of production:London (Timezone: Europe/London)
- Date of production:Ordered 1925, delivered 1926
- Collection:Royal Conservatoire of Scotland
Side-blown horn
- Place of production:South Sudan
- Date of production:1925–33
- Collection:Powell-Cotton Museum
Side-blown horn
- Place of production:South Sudan
- Date of production:1925–33
- Collection:Powell-Cotton Museum
Side-blown horn
- Place of production:South Sudan
- Date of production:1925–33
- Collection:Powell-Cotton Museum
Side-blown horn
- Place of production:South Sudan
- Date of production:1925–33
- Collection:Powell-Cotton Museum
Post horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1925–6
- Collection:Museum of Army Music
Horn
- Place of production:
- Date of production:c.1930
- Collection:Royal Academy of Music Museum
Horn; suura koma
- Place of production:Orissa
- Date of production:1925-1975
- Collection:Horniman Museum and Gardens
Post horn
- Place of production:Manchester (Timezone: Europe/London)
- Date of production:circa 1930
- Collection:Horniman Museum and Gardens
Side-blown horn
- Place of production:Nigeria
- Date of production: 1925-1950
- Collection:Horniman Museum and Gardens
Single horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1929–30
- Collection:Museum of Army Music
Post-horn. Nominal pitch: 2½-ft A♭.
- Place of production:London/England
- Date of production:Circa 1935
- Collection:University of Edinburgh
End-blown horn
- Place of production:Angola
- Date of production:1930–7
- Collection:Powell-Cotton Museum
Post horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1931
- Collection:Museum of Army Music
Post horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1933
- Collection:Museum of Army Music
French horn.
- Place of production:Probably Germany.
- Date of production:Probably mid-20th century
- Collection:Royal Conservatoire of Scotland
Animal horn.
- Place of production:Probably England.
- Date of production:Probably mid 20th century
- Collection:Royal Conservatoire of Scotland
French horn.
- Place of production:London.
- Date of production:1935
- Collection:Royal Conservatoire of Scotland
Horn
- Place of production:London (Timezone: Europe/London)
- Date of production:1937–8
- Collection:National Museum of the Royal Navy
Single horn
- Place of production:Markneukirchen (Timezone: Europe/Berlin)
- Date of production:1938
- Collection:National Museum of the Royal Navy
Single horn
- Place of production:Markneukirchen (Timezone: Europe/Berlin)
- Date of production:1938
- Collection:National Museum of the Royal Navy
Double horn. Nominal pitch: F+B♭.
- Place of production:Italy
- Date of production:Circa 1950
- Collection:University of Edinburgh
Horn
- Place of production:
- Date of production:c.1950
- Collection:Royal Academy of Music Museum
Double horn
- Place of production:Germany
- Date of production:1950–89
- Collection:National Museum of the Royal Navy
Horn;French Horn
- Place of production:UK, England, London
- Date of production:second quarter 20th century
- Collection:Bate Collection, Oxford
Side-blown horn
- Place of production:Uganda
- Date of production:1955–65
- Collection:Powell-Cotton Museum
Side-blown horn
- Place of production:Uganda
- Date of production:1955–65
- Collection:Powell-Cotton Museum
Horn
- Place of production:Gamo Gofa
- Date of production:circa 1964
- Collection:Horniman Museum and Gardens
French horn. Nominal pitch: F+B♭.
- Place of production:China
- Date of production:Late 20th Century
- Collection:University of Edinburgh
End-blown horn; tetuang
- Place of production:Kota Bharu (Timezone: Asia/Kuala_Lumpur)
- Date of production:circa 1972
- Collection:Horniman Museum and Gardens
Post horn.
- Place of production:London.
- Date of production:Probably c|1990
- Collection:Royal Conservatoire of Scotland
Post horn.
- Place of production:London.
- Date of production:Probably c|1990
- Collection:Royal Conservatoire of Scotland
Vented post horn
- Place of production:London.
- Date of production:Probably c|1991
- Collection:Royal Conservatoire of Scotland
Horn; moose call
- Place of production:Ontario (Timezone: America/New_York)
- Date of production:1988
- Collection:Horniman Museum and Gardens
Shofar
- Place of production:Israel
- Date of production:1997
- Collection:University of Edinburgh
Natural horn
- Place of production:England
- Date of production:2002
- Collection:Royal Academy of Music Museum
Natural horn
- Place of production:England
- Date of production:2002
- Collection:Royal Academy of Music Museum