Abstract: A modular bank teller station wherein a single teller can provide banking service to a plurality of banking customers, including a frame having a plurality of interconnected wall members attached thereto to define a bank teller control area isolated from a plurality of customer receiving areas. A communications system is provided for visual and audible communication between the teller and the customer. For transaction of banking business a tray system is provided which will allow the transfer of bank transaction material between the teller and the customer while keeping the tray access openings covered in the absence of a tray.