Very rare and hard to find 19th century sandwich guitar tuners. These are for slot head model early guitars such as Martin, Washburn, et al parlor guitars.
One button appears to have a crack on one side but it is solid as is all other facets of these machines. Centering of posts is 2 1/2" overall and 1 1/4" between each with a diameter of 1/4. Gears are in great shape and solid to the plate. Marking but set is reminiscent of German made Seidel tuners.
The item "Vintage 19th Century Guitar Tuners, Cool Rare Set" is in sale since Tuesday, November 27, 2018. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Parts & Accessories\Guitar Parts\Tuning Pegs".The seller is "tbgmusic" and is located in Columbia, Missouri. This item can be shipped to United States.