Gray 150-K 2 loc R5-6

The Gray Manufacturing Co. 150-K. It is a manual post-pay payphone or paystation. All operation is controlled by the operator. There is no collect or receive function, once a coin is dropped into the proper slot it goes directly into the coin vault. The upper housing, lower and backboard are steel. The upper housing lock is an E-10-E which uses a flat key. It is equipped with a Kellogg receiver, Western Electric Transmitter, Automatic Electric Strowger mouthpiece and a 2A open top coin receptacle.