One is a generator/battery bank control panel I believe from the 1920s - I would love any information on that one.
The second is I think some form of motor control resistance box. The terminals on the lower edge read :- First pair, Main, Second pair, Motor and under that 50V DC. Third pair, Motor, Fourth pair, Transf. and 33V AC.
The Third pic is a panel that would I understand have been used to charge batteries from DC lighting mains - I have cleaned that up somewhat. Any information on the lamps to use in it would be appreciated.
Since sending in the pics, I have discovered the second item is some form of electro/medical control - but for what??? Made by a firm called Schall of New Cavendish street, London UK. Whatever it did, looks like it might have been pretty scary!