Rare set of Seidel Tuners. Seidel tuners, made in Germany in the 19th century, were CF Martin’s tuner of choice for his high-end guitars. You can see these tuners on some rare 1860 – 1880’s Martins– but they are very rare to encounter not married to a guitar. German silver backplates; floral pattern decorations, hand-engraved, The original buttons are of genuine bone. Good working order.