I had only seen a few pictures of slotted heads in books when I made this one (where was the web when I needed it?). It's not perfect but it works. The inlay is bone.
You might ask about the tuners. I can't tell you the brand. I'm not sure they had one. I remember them being about twice as expensive as the ultra-cheap generic ones with the white plastic knobs, also available at the time. The plating is lifting and flaking off one of the knobs. I had to wick some thin CyA into two others that were loosening on the shafts. I may talk myself into replacing them eventually.