This cams of a Harley-Davidson softail rat bike, lenses is cracked and had a repairs, you will need to fabricate 2 brackets and weld them to swing arm. Study photos as they are a part of description, I've added a picture of how it sat on rat bike, will need electrics sorting. I believe lense and holder are of yankie truck approx 1955 ish, looks a bit rough but does the job.
