Axe-hammer from Athelstaneford, East Lothian

Oval carved stone ball, with 67 knobs, from St Thomas's Kirk, Hall of Rendall, Orkney

Carved stone ball, with six knobs, locality unknown

Inlas or pieces of coral and igneous rock used as files for fashioning pearl shell ornaments: Melanesia, Vanuatu, late 19th century

Six knobbed neolithic carved stone ball worn very smooth and dark brown and grey in colour