Porcelin George and Martha Washington lamps

Good Morning,

The lamps are beautiful and the respectully, george is on the left or right side.  As I mentioned above, my grandmother glued green felt to the bottoms to protect furniture so I can not see any marks or indication of the maker.  In my searches to find out about these lamps I can only find a single lamp with them painted on and not the individual figures.  They are in mint condition except that one cord has been replaced.  The other is original. 

I would appreciate any information you can provide on these unusual lamps.

Thank you Holly E. Walsh

Jupiter Florida

Good