Oblong flaked stone bar of sandstone, from Walls, Shetland

Flaked stone bar of sandstone from West Burrafirth, Shetland

Flaked stone bar of sandstone from West Burrafirth, Shetland

Flaked stone bar of sandstone from West Burrafirth, Shetland

Flaked stone bar of sandstone from West Burrafirth, Shetland

Fragment of a flat implement, from West Burrafirth, Shetland

Small flaked stone bar of sandstone, from Stanydale, Sandsting, Shetland

Tool fashioned on a thin sandstone block or bar, from Stanydale, Sandsting, Shetland

Tool fashioned on a thin sandstone block or bar, from Stanydale, Shetland

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