I'm sorry I just noticed this message. Unfortunately I'm not sure. I can tell you it has pretty good weight to to compared to other buckles of the same size. Also by looking at it, it looks like it has been plated. I don't know if it means anything or not but right up by the knob that goes in the hole on the belt it says HOT on one side of the knob & GED (possibly 6ED) on the other side. Also on the back side where the bar goes across the opening of the horseshoe you can see ONY but it also looks like there was a P before that tjay got covered by the bar & the plating. Sorry wish I could be od more assistance but like I said it is heavier than most. My son has one about the same size & this one weighs at least twice that one. Please let me know if you have any other questions.