Rubner is a german company with manufacturing facilities in Markneukirchen, Germany, the town where C.F.Martin was born. They make excellent quality tuners, and they are the
only company I've found that does a good selection of matte and patina finishes. Below you'll see the Matte Brass and Black Specter tuners. Note the black specters come with black knobs, the ones
in the photo were ordered to match.