Thanks for sharing this.
I've never seen one of those before - I agree that the carving is evident of a great level of attention to detail - I shudder to think about the time investment and to have the simple luxury of being 'allowed' that much time to work on something like that -
My life is such that this would get put aside as 'yet another half-done, abandoned project' mostly due to the rest of my life distracting me with 'obligations' that consume all of my other time...
I know it's impossible to make something really great in a short time window, but ideally for me to build an instrument, it needs to literally be a 'weekend project' - and my expectations are low for something that would even be worthy of talking about in the end - and just a disappointment