This is from a ukulele I purchased used, made in 1998. The previous owner said they replaced the tuners with Gotoh tuners soon after buying it, so I believe these are from around 28 years ago. Based on the shape, I think they are UKA tuners. They were attached to a headstock that was 12mm thick. The threads on three of the screw holes are still usable, but one is a little worn. Please check the photos. These would be good for someone who can repair the screw threads or for use as spares.