Equinoctial or polar sundial of slate from Wigtownshire, fashioned by John Bonar, schoolmaster in Ayr, dated 22 September 1632

Small box containing heart-shaped pieces of slate, etc., made by a patient in Rosewell Asylum

Half of a cushion macehead of veined slate, broken through the haft hole, from Fife

Ovoid macehead of flinty slate from Newmills, Balgowan, Perthshire

Bracer or wrist guard of polished veined slate with a perforation at each end, from Broadford Bay, Skye

Curved bracer or wrist guard of polished slate with a row of punctulations at one end and a hole at each of the four corners, from Corry, Broadford Bay, Skye

Half of a bracer or wrist guard of polished slate with three holes at one end, from Candle Hill, Old Rayne, Aberdeenshire

Portion of a bracer or wrist guard of grey slate perforated at one end, from the Lomond Hills, Fife

Bracer or wrist guard of veined slate with a perforation at each end, from Ireland

Whetstone of slate, from Knowe of Rowiegar chambered cairn, Rousay, Orkney

Disc or pot lid of stone, from Quoyness chambered cairn, Elsness, Sanday, Orkney

Rough oblong stone implement, possibly a flaked stone bar, from Quoyness chambered cairn, Elsness, Sanday, Orkney

Rough oblong stone implement, possibly a flaked stone bar, from Quoyness chambered cairn, Elsness, Sanday, Orkney

Trial design on a piece of dull green slate, bevelled at one edge and incised with scrolls, from Dunadd, Argyll

Trial design on piece of slate, for a penannular brooch, from the royal hillfort at Dunadd, Argyll, 575 - 850 AD

Insular lettered slate disc inscribed 'in nomine', from Dunadd, 600 - 800 AD