Pre-war tuners reborn! Our replica 3-on-plate tuners with distinctive engraved motif, as supplied by Waverly to guitar manufacturers from the 1920s to the '40s. They feature authentic steel baseplates and ivoroid knobs, plus 15:1 gear ratio for better tuning than the originals. Golden Age tuners are available exclusively from StewMac, made with our expert eye for details and exact specifications. Golden Age tuners are the rebirth of popular early 20th Century tuning machine designs, featuring simple steel plates and open gears. Replacements for the originals have long been sought by collectors and repairmen, to restore older guitars and improve their tuning. Our special relic nickel-finished versions complement vintage hardware and add an authentic look to reproduction guitars. Features include: 15:1 gear ratio for improved tuning Vintage-style riveted worm supports Handsome grained ivoroid knobs .236" (6.00mm) string post diameter Press-fit peghead bushings Original mounting screw spacing (8 screws incuded) 1-3/8" (34.93mm) string post spacing Relic nickel finish