1977 Electronic Pong style TV game. This one features separate controllers and power supply, one of the few games of this type not to take batteries. 

In Excellent physical condition, but we could not get a TV signal to come up during testing. The front metal faceplate still has its protective film, which when removed will make the unit look new again. 

The outer box is tatty with some damage, but the poly inners inside which hold the hardware are in very good shape.