Lovely looking Khanjar!
I do notice though, that the majority of splits seems less to do with age & more with way, that at the time of manufacture was unseasend,fresh or green ivory which then split as it shrank during drying on to the small decorative & grip improving nails, in the pommel/end grain area, with the splits then extending logitudualy,as it shrank further .
Perhaps Ibrahim can tell us when fresh rather than seasoned ivory became popular for Khanjar hilts in Oman?
I would assume traditionaly seasoned or dry ivory was prefered?
Spiral