This is a rare Strowger potbelly 11-digit dial desk set, but this one has the smaller, early style transmitter and forked spear hook with rounded bulbous ends and a ring button in the base. This button took the place of the previously required magento generator. The base is unusual because it is painted black rather than the more common nickel plated base. Outstanding original condition including original base plate and everything inside the base. Size 12" T.