This is a Nashville bridge Tune-O-Matic Made in Germany that came with a 1979 Gibson ES-335 pro. It's an old item, so it shows signs of use and has scratches. The saddles for the 5th and 3rd strings are reversed. (I don't remember why I did this.) There are grooves cut into the saddles. (Some are off-center.) Please understand the above condition before purchasing. Returns are not accepted. Thank you.