Plug of steatite, from a cist at Quandale Mound no.8, Rousay, Orkney, Middle Bronze Age, 1850 - 1400 BC

Plug of steatite, from a cist at Quandale Mound no.8, Rousay, Orkney, Middle Bronze Age, 1850 - 1400 BC

Plug of steatite, from a cist at Quandale Mound 8, Rousay, Orkney, Middle Bronze Age, 1850 - 1400 BC

Plug tap, 1 1/4 inch Whitworth, illustrating temper

Three pin electric plug, 13 amp, for mains socket, c. 1995