Came home from shopping tonight and found this on my porch from a friend. He dropped it off hoping I could ID it. Don't have any background on it. Beer can for scale.
Back on topic, I **** weld exhaust tubing when fabricating custom exhaust systems. I've made similar pipe alignment clamps by cutting windows in the band type exhaust clamps. Lets you tack the sections in place, remove the clamp, and finish the weld.