Up for sale is one (1) single genuine vintage early-1960s "Single-Line" Kluson Deluxe tuner. The backplate is stamped "D-169400 PATENT NO." Please Note: The button shaft is slightly bent (see photos), though the gears do still catch and turn perfectly, it is fully functional. This is an ideal candidate to be carefully straightened or used as a premium parts/button donor. The original cream button is in phenomenal structural shape—completely solid and stable with natural amber patina and no brittle crumbling. If you have a straight vintage tuner with a rotted button, or a padded vice and some skills, this is the perfect original donor piece. Tuner only; no hardware included. I have three more in perfect shape, if you want more than one contact me and we can work out a discount. Packed securely and shipped fast.