One (1) B683C module with green board and a blue plastic extraction handle attached by two rivets. The handle reads "DIGITAL EQUIPMENT CORPORATION MAYNARD, MASSACHUSETTS" in raised letters on the solder-side. The board on the solder-side reads "50 OHM BUS DRIVER B683C" along the top-left edge. There are three black inspection stamps, one circle, one square, and one triangle. A repeating "don" pattern is printed in red on the board. A thin strip of particle board, painted white, has been glued over the connector fingers on the solder side.