This is a new old stock Ammco 903017 boring bar upper clamp for 4000, 4100, and 7500 brake lathes. I know it's from '05 because that's when we parted ways with Hennessy and we went through a lot of these prior to that. It's stamped "CHINA" so they had already begun outsourcing their castings by then. It has its original box and label, but lacks the manufactured date like their parts did before the early 2000's. Please check out the other Ammco and Coats parts and accessories I have listed.