Does anyone recognize this clamp? It's very similar to a Miter Saw clamp, but way more stout... A radial arm saw perhaps? The peg is 11/16" diameter x 5" long. The arm is cast iron and painted an aqua-green hue. I'm trying to think of who makes tools this color.. It seems a little too green, and not quite gray enough for Delta... Grizzly maybe? Anyone?