Kluson Replica Slotted & Solid Head Tuner Set

I’ve never seen a replica set quite like this before, no idea where they came from nor do I think anyone makes anything like them today. Been here for years, hidden away, unused and never on a guitar. Chrome-plated, metal buttons, exposed gears in the 1940s-style with nicely-blued center screws, and with posts drilled for both slotted head and solid head guitars, quite cool and extremely versatile. What differentiates them from a standard set from back then is that the worm-shafts, just aft of the buttons, have a few fancy grooves around them, kinda nice $49