We have 9 reminders of factory scenes, sports day reminders, fundraising and the day an important visitor did a tour.
Perhaps you are pictured or you can spot someone you know. We would love to hear from anyone with memories of working at the factory.
Which part of Plesseys did you work in and can you remember the friends you made.
Take a look through our photo collection and then get in touch to tell us more.
1. Workers in 1969
Were you pictured at work in this November 1969 scene? Photo: Shields Gazette
2. Smiling in the rain
Plessey workers were pictured leaving their meeting at the Unionist Club, South Shields, in 1969. Photo: Shields Gazette
3. The training section
The training section at the Plessey new telecommunications factory. Does this bring back memories of your time there? Photo: Shields Gazette
4. Getting to know the staff
Industry Secretary Sir Keith Joseph talks to Linda Lambert at the Plessey factory. Photo: Shields Gazette