This is the Qudrant and can be seen in the middle of the top shelf, mostly obsured by the other props infront of it. This navagation instrument is used to measure the angles of constiltations and celestial bodies in the sky. To make this I used the original Quadrant from the painting as a reference points using the other props to gather the releveent information and measurments. I made the original Quadrant on AutoCad and then cut ot out on a laser cutter. Then spray painted white and black paint rubbed intos the design that was etched into the Qudrant.