You begin facing a workstation, turn around and in the distance, you will see 2 gray open doors, go through the gray door that's on the left next to the wooden console table, and then immediate to your left, there will be a staircase, go up the stairs, and enter the archway on the left, go forward and take the last step into the corner, to the right of the wooden cabinet, the black lamp should be to your right, you are done.