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Amgueddfa Cymru – Museum Wales
Portion of large annular bead, light blue-green glass, with trace of undulating serpent of broad royal blue and narrow opaque yellow stripes. A certain amount of brown and opaque yellow incorporated accidentally into the matrix at the core.
Site Name: Pen Llystyn Roman Fort, Gwynedd
Notes: road between R7 and *, at south-east end
