Name: Olifant (altenate spelling of the word elefant)
Type: Wind instrument
Wikidata: Q1335907
Apperance: It has the shape of animal's tusk (elefant, buffalo, ox,...)
Usage: Olifant was widely used in wars in Middle Ages to alarm or increase soldiers' morale. In some other part of the world it can also be played as an instrument.
Disambiguation: alarm horns, hunting horns, natural horns
Description: People have to blow the bottom part of the instrument to create sound. The sound of the olifant can be used as background music.

*Example uses: *The Song of Roland

Links: https://en.wikipedia.org/wiki/Olifant_(instrument)