1331 should be before 1912 or 1913 no ?

Is this what you are looking for?

it could be so , but I think PMG and other banknotes graders and using the Hijri calendar because they did put on it 1912 not 1915 

PMG:

Roger Francis

Yes, quite right for P-82. I was showing PGM dating for the subject of your post, P-72.

Here's P-82:

Do you know how we can add the P-82 to Numista Catalogue

Roger Francis

Do you know how we can add the P-82 to Numista Catalogue

No need.  N#284193

thank you , yep I did add this one to my collection and I added a comment  to remember :p