One (1) R181 module with green board and a red plastic extraction handle attached by two rivets. The handle reads "DIGITAL EQUIPMENT CORPORATION MAYNARD, MASSACHUSETTS" in raised letters and "143 *" is incised between "CORPORATION" and "MAYNARD." The board on the solder side reads "DC CARRY CHAIN R181C" along the left edge. There are two inspection stamps near the handle on the component side between the rivets; one black circle with "PR" at the center and one blurry red triangle. A repeating pattern in red print is visible on the substrate.