Physical description
Piece of worn trolley wire (copper, probably cadmium copper) taken from north bound trolley wire between poles 9 and 17 (Loop and St. Aidans Drive) on 4/3/1997 during replacement operations. Is badly worn on one side. OK on the other side - slightly curve with worn side on the outside of the curve. Green (Oxidized) and sides, dark brown on top. Has been cut at either end.
Images added 3-12-2016
See p14 of Section 65 of ICS Manual Tramway systems etc. London c1921.