Arkfeld thinks the dark and shiny patina of the horn is evidence of heavy handling by human hands over a long period of time in prehistory. It appears to have "lip wear" around the mouth piece.
The art and tools at the Arkfeld archaeology site suggest a Pleistocene age for the site and this may be the oldest known stone wind instrument in the world. Some dated examples of wind instruments made in bone exceed 30,000 years BP, but portable stone acoustics seems much less common. I have not been able to locate record of another example of a naturally advantageous portable stone which has been humanly modified to create an acoustic wind instrument.
The people at Arkfeld Site were masters of limestone lithic technology and were able to exploit it to make the entire range of stone tools they needed, along with many art objects and now we know: musical instruments. This artifact speaks to the durability of the ancient peoples at the site and their profound intimacy with the natural materials available to them.