Gray 150-K loc SC-6
Gray #150-K 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 which uses a flat key. This unit is mounted to a 139A bracket.
