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Amgueddfa Cymru – Museum Wales
In A, a round bar is wound with six wires abreast giving rise to the appearance of a twisted bar. In B, a thin strip of metal has been twisted into a screw-like form between two stout round bars. In C, a thin strip and two others of half the width, have been soldered together to form a rod of cruciform section, and twisted.
Site Name: Ireland, Europe