Paul,
In the Safety Discussion Area, recently you were asking what a PDL 30 connector was.
I mucked up the code of this, it's actually a PDL 60 series of fittings that were used over here in domestic installations, during the 60's and 70's.
Here's a picture of a single socket-outlet, from this range.
[Linked Image]
These came with or without switches and some also had a ribbon(twin-lead) TV outlet below the socket.

[Edited to add pic URL]

[This message has been edited by Trumpy (edited 07-09-2003).]