One (1) M7821C module with green board and a magenta 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 "INTERRUPT CONTROL" along the left edge. "FLIP CHIP" is printed on the component-side between the rivets, "MAY 16 1972" is stamped in black above. One circular black inspection stamp and "JUMPER FOR ONE" can be found on the component side.