This is a W051 module with a light green board and a tan plastic extraction handle, attached by two rivets. "FLIP CHIP" is visible between the rivets. The component side is marked with four inspection stamps. The darkest stamp reads, "Tested 4 A.M.T.1". "INDICATOR DRIVER W051D" is printed on the solder side of the module.
Digital Equipment Corporation (DEC)
Stamped in black on face of handle
Printed in silver on reverse side of module toward middle.