Produced in 1924 by the Soda Service Corp., this machine is the first Coca Cola coin-operated cup dispenser ever produced and the only one in existence is the serial #71. Several patents were filled by the corporation in 1920 and 1924 detailing such dispenser.
This Siphonmixed cup dispenser vending machine has been sold for as much as $25,000 recently. It currently resides in a private collection owned by Seth Lawrence of Plymouth, MA, USA.
Classic Soda Machines 3rd Edition - Jeff Walters - Retro Publishing - 1999 - Page 26