At the cab control

Caption: "At the cab control--Operation of a train over the entire system is at the discretion of the man at the 'cab.' Here, Albert Solomon, left, of 131 Kensington St., an engineering student at Brooklyn Polytechnic Institute, and Robert Anderson of 605 88th St., are shown in full control of East and Westbound trains on the mainline. ... Approximately 2,000 persons, including the model railroad 'bugs' from surrounding States, are expected to visit show before it closes on Nov. 2."