Very nice. This appears to be a mild composite, that is a mildly reflexed sinew wood horn composite bow. "Advanced selfbow" is a little misleading and sounds pretentious. It is not quite a selfbow, but a backed bow or a laminated bow if just horn is added to wood. If Moellegabet bows are advanced. how about deflex-reflexed recurves?
I am fascinated by the design and wondering why that extreme ratio of 13/17 is adopted. The working limbs do not appear to be particularly wide enough for such ratio. I would really appreciate the full spec and some FPS numbers. Thanks.