This is an early Bronze Age flanged axe in the Arreton tradition, from the period described by Professor Stuart Piggott as  " those critical and formative centuries of ancient barbarian Europe, the earlier second millennium BC." .
It has a thin butt, shallow stop ridge and the distinctive wide-splaying crescentic cutting edge.
It is 103 mm long and weighs 150 g.
The original is in the Devizes Museum, which has amongst its unique collections of early archaeology, the wonderful Bush Barrow finds and much else associated with William Cunningtom and Sir Richard Colt Hoare.