Plaque reads GE TUNGER battery charger cat. 3049481. 60 cyc. 115v. 3 cells

Porcelain socket.  Clamps read MUELLER ELECTRIC CO. Universal clip 25 amp cleveland 

It has very old wiring needs to be redone. I can't test it but I'm happy to provide any additional info/pics upon request

BOX MEASUREMENTS 8"x 8.5" x 6" deep