Hammerstone with a slight groove round the middle, from Kirklauchline, Wigtownshire

Hammerstone of sandstone, worn at both ends by use, from Kenny's Cairn chambered cairn, also known as Cairn Hanach, Caithness, Highland

Hammerstone, from Galson, Barvas, Lewis, Ross and Cromarty

Hammerstone, from Galson, Barvas, Lewis, Ross and Cromarty

Hammerstone used for making stone axes, from a lake-dwelling, locality unknown

Hammer-stone, cylindrical with hollowed ends, used to grind pigment: Australasia, Australia, Australian Aboriginal, 19th to 20th century

Pebble of brown silicified sandstone with one end finely abraded from use as a hammer stone, Neolithic, excavated from a chambered cairn at Quanterness, Orkney

Nearly spherical 'Knap-stone' or hammerstone, from Scotland, Prehistoric