Hi Atlantia,
This is what I see from the inscriptions.
Anyhow you have to rotate the picture just like the one done by Dom.
عــبــد الــرب ٢/٢/٢٢ = Abdul Rabb 2/2/22 = Abdul Rabb 2nd day of the 2nd month of the year 22
Abdul Rabb which means Servant of The God might be the name of the maker or the name of the owner of the Kinjal.
The 2nd day of the 2nd month of the year 22 might means 2nd of Safar in Hijriyah year of 1322 which is equivalence to Monday 18th of April 1904.
It seems to me that the inscriptions was actually done after the Kinjal finished. That's the reason why the inscriptions was rather badly engraved/scratched.
Just my two cents and I might be wrong
mohd