call box

For a new officer or an officer assigned to a new beat, knowing all the call boxes in his Carney Block was a priority.

Gordon hesitated, then swung glumly toward a corner where he could find a police call box.

Fig. 254 shows another form of call box, the handle being moved around to the call desired.

There were no windows, and it appeared to be a kind of sound-proof call-box, which indeed it was.