Welcome to the Forum.
I agree with Abdullatif. This is Asir/Hijaz from mid 20th c. I have a very similar one with a different style blade which came in a nice felt covered presentation box, with the Saudi Crest on the lid.
The correct Saudi description is Dharia dagger in Muqaffala or Mufarragha style.
If you need to, please feel free to email me at
sabiki@clear.net.nz
Regards Stuart