Buried within one of a row of pits within the large Neolithic hall at Carnoustie was a complete axehead in pristine condition, quite possibly never used. Measuring 170 mm long and 63.5 mm wide, this was analysed by Alison Sheridan from National Museums Scotland. With one face more markedly convex than the other (the blade lies closer to the less convex face), in theory this could have been hafted as an adze-head instead of an axehead, although it lacks the marked longitudinal asymmetry of adze-heads.
http://guard-archaeology.co.uk/carnoustieHoard/?p=205
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