These are the markings
from the Turkish Mauser C96 The Left image is where the Mauser Banner would
normally be it contains a Crest an the Number 1314 in FARSI all
the numbering on the Elevated sight are in farsi.
(VARY RARE) Please
Note that the term FARSI for these numerals comes from The Bureau of Alcohol,Tobacco
and Firearms reference for this model.