[Bonetools] Bone whistle?

[SIDERA Isabelle]

Dear all,
Does somebody know this type of artefact made on caprine's long bone, found in the East of France, and which dates of the middle Bronze Age? Could it be a whistle? Are whistles common in european Bronze Age? I am thinking also at a hinge. Is this could be a hinge? Are there any hinge identified in Bronze Age?
Any else idea of the function of such an artefact?
Thank you very much for your answers
Best wishes
Isabelle
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