Carved stone ball, with six knobs, burnt with surface spalling, from Wester Kinleith, Luthrie, Fife

Carved stone ball, with five discs, ornamented with small knobs in concentric circles, found near Fordoun, Kincardineshire

Carved stone ball, with six knobs, from Migvie, Aberdeenshire

Carved stone ball, with seven knobs, from Urlar, Perthshire

Carved stone ball, with six discs and small knobs inbetween, from Craig Beg, Ballater, Aberdeenshire

Carved stone ball of sandstone, with 7 knobs, from Inverkeithny, Banffshire

Cast of a carved stone ball, with six knobs, found near Methlick, Aberdeenshire

Carved stone ball, with six knobs, from Montblairy, Banffshire, 3100 - 2500 BC

Carved stone ball from Glass Hill, Towie, Aberdeenshire, Neolithic, c. 3000 BC

Two casts of decorated carved stone ball NMS X.AS 217, found near Elgin

Carved stone ball, with six knobs, one ornamented with incised cross lines, from Loch Lochy, Inverness-shire

Carved stone ball, six knobs, one ornamented with parallel lines, from neighbourhood of Inverawe, Argyll

Carved stone ball, with six incised knobs, from Dumfriesshire

Carved stone ball, with four knobs, from the Water of Leith, Edinburgh

Cast of a decorated carved stone ball, with four knobs, from Perth, Perthshire

Carved stone ball, with shallow incised discs, found near Auchinblae, Kincardineshire