Museum of London - This is the oldest surviving complete medieval trumpet. Late Medieval; late 14th century. It wasn't used to play music but possibly for signalling ship-to-ship. The four sections could
Medieval Blowing Horn BL20-001 — Griffinstone
The Royal Drinking Horns of Norway - Medieval Histories
ArtStation - Medieval horn instrument.
Medieval Viking Drinking Horn Handcrafted Genuine Buffalo Horn – Lord of Battles