Do you remember the new configuration which was proposed in the 1970s as a replacement for all the existing European connectors?

It consisted of two rectangular sockets mounted vertically within the space of a current single-gang plate, with three flat pins, the central earth being offset a little. The sockets were recessed back from the face, similar to the Swiss type. Plug cords exited either straight or right-angled downward. As near as I can remember from the prototype photos, it was something like this (although the earth pin may have been offset to the right instead of the left):

[Linked Image]