Thanks for the kind words everyone!
The buckle is made from a piece of flat bar brass. I made a press form to give it a gentle curve, then sanded the ebony to match the radius. The two pieces are glued together and shaped and sanded by hand starting with files and ending up with 2500 grit sandpaper. So much elbow grease goes into getting it to shine like that. The most difficult part of the process, in my opinion, is the central tine. It's mostly shaped while still in rod form, then heated with a torch to red hot, quenched in water then bent in place on the belt. Sometime it takes several heatings to get it bent tightly around the centre of the belt. I had never worked with the brass beofre this project and a lot of this was trial and error. Luckily it works a lot like wood, so my workshop came in very handy.