North Eastern Railway, Identity Disc, No.355. To admit bearer into Sunderland Docks during 1914-18 War north eastern railway identity disc
Symmtrical projection lens in a nickle plated mount 5.5" f.l.; no makers name given. Symmetrical Projection Lens 5.5" f.l.
Original Fleming diode, 60 S16, (RMW/A1A - McVitie Weston number), by The Edison and Swan Electric Light Company Limited, c.1904, invented by Sir (John) Ambrose Fleming and used by Fleming in October 1904. Fleming diode 1904
