Thanks for these interesting pics
unfortunately, no one Arabic letter has been determinated
I have been to have a look on Ethiopian/Nubian/Eritrean alphabet
the Ge'ez alphabet here attached (but I haven't time to analyse correctly)
has may be (?) some similitudes with the blade's inscriptions
apparently, I didn't saw a single date, even digit ??
I saw nothing, could be attributed to some talismanic practices
anyway, really amazing and gorgeous kaskara
all the best
à +
Dom