Very Early type of Socket

[Peter J]

Hi,
The socket cover appears (98%) to be ceramic with a centre screw holding it to the ceramic base. The Crabtree switch may be original but could have been a later replacement.
Peter J.
PS Chinese socket getting close but I would have to research the obsolete Chinese ones. I did find the modern Chinese plugs but not the above.

 

[Peter J]

It appears to control the socket as they are mounted on the floor skirting board.
Peter J.

 

[Peter J]

Thanks for comment, it is probably for use with 2 different plug tops that were being used at that time (1900-1920).
Peter J.