Here is a pic of the stock. I noticed that edges around attaching mechanism and wood stock are not smooth/even. So far, the pictures that I have seen of the attaching lever have 5 ridges. The one shown here has only four. The Farsi markings are also an at angle. These are only observations, this rig could possibly be all original. No other markings on rig.
<a href="http://boards.rennlist.com/lfupload/five.jpg" target="_fullview"><img src="http://boards.rennlist.com/lfupload/five.jpg" width="400" alt="Click for fullsize image" /></a>