![French Stölzel valve horn with two valves, after Antoine Halary c. 1830 — Natural Horns by Richard Seraphinoff French Stölzel valve horn with two valves, after Antoine Halary c. 1830 — Natural Horns by Richard Seraphinoff](https://images.squarespace-cdn.com/content/v1/601752fa2e514a5b86edf455/1613633477549-E9MOY68OG3OU71HOJSG9/20200531_142546.jpg)
French Stölzel valve horn with two valves, after Antoine Halary c. 1830 — Natural Horns by Richard Seraphinoff
![French Stölzel valve horn with two valves, after Antoine Halary c. 1830 — Natural Horns by Richard Seraphinoff French Stölzel valve horn with two valves, after Antoine Halary c. 1830 — Natural Horns by Richard Seraphinoff](https://images.squarespace-cdn.com/content/v1/601752fa2e514a5b86edf455/1613633514287-CZX4FHQQQKPFJR51SHN1/20191230_124833-1.jpg)
French Stölzel valve horn with two valves, after Antoine Halary c. 1830 — Natural Horns by Richard Seraphinoff
![Valve Horn, engraved on the cup 'G: OTTENSTEINER. K: COURT: INSTRUMENT, Stock Photo, Picture And Rights Managed Image. Pic. AQT-LCK-190715-036224 | agefotostock Valve Horn, engraved on the cup 'G: OTTENSTEINER. K: COURT: INSTRUMENT, Stock Photo, Picture And Rights Managed Image. Pic. AQT-LCK-190715-036224 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/19d55b2048a131cd8873d52a1bf82ca9/aqt-lck-190715-036224.jpg)
Valve Horn, engraved on the cup 'G: OTTENSTEINER. K: COURT: INSTRUMENT, Stock Photo, Picture And Rights Managed Image. Pic. AQT-LCK-190715-036224 | agefotostock
![The VALVE HORN (French : Cor a pistons) was introduced in the 1830s and completely replaced the Natural Horn used by Mozart and Beethoven Stock Photo - Alamy The VALVE HORN (French : Cor a pistons) was introduced in the 1830s and completely replaced the Natural Horn used by Mozart and Beethoven Stock Photo - Alamy](https://c8.alamy.com/comp/2M9BGW1/the-valve-horn-french-cor-a-pistons-was-introduced-in-the-1830s-and-completely-replaced-the-natural-horn-used-by-mozart-and-beethoven-2M9BGW1.jpg)