Drilled and polished prestige stones of prehistory.
A prehistoric mace head is a symmetrical stone — ovoid, pestle-shaped, or elegantly waisted 'cushion' forms — with a neat cylindrical perforation for a haft. The drilling is the marvel: hourglass profiles from two-sided drilling, or straight bores made with tube drills and sand.
Distinguish from natural pierced stones (irregular holes, no symmetry), loom weights (rougher, unpolished), and later machine-drilled objects (perfectly parallel bores with drill chatter). Many mace heads are made of visually striking rock, chosen to be seen.
Measure the perforation at both ends and mid-point if possible — the profile records the drilling method. Note stone type, polish, and any battering (some were used, not just displayed). These are significant finds; record findspot precisely and consider expert recording.