Fair used shape, moderate wear from use. I believe the bulbs are even still working. This is for the complete set of two. These were used in many 80s BMWs. This one is from an early E30 chassis, it's made by Sidler, #1176. These will only fit the early North American model E30, with the aluminum bumpers. They will not fit the plastic bumper cars.

BMW lists the following parts in this assembly:
01 Side marker light, rear 2 09/1985 63141370266