I acquired this item from an artefact dealer who believed it to be a Neolithic “shaft abrader”. These artefacts are usually from coarse/abrasive stones (this is silicified sandstone, bordering on quartzite) and were used to smooth arrow shafts and wooden spindles for other uses. There are also similar artefacts used for making tubular stone beads.
Unfortunately, I don’t have a precise locality apart from Moroccan Sahara but in any case it was found in an artefact-rich area and may well have been manuported to where it was found. It fits neatly in the hand for such a purpose but I didn’t b