Thank you Patrice! Your photo of the back of a Persian holster is, I believe, the only one ever shown on the forums or published in a reference book. Even Sturgess does not show one. As we can now see, a Persian holster's stock block has a small, central leather spacer, just like the Imperial Artillery holsters, and also, again like the Imperials, it does not have a vertical belt sleeve. Phoenix Investment Arms, in their description, claims these features to be distinctively Persian, when in fact they are distinctive to cheap fakes of Pakistani origin!
There are two features that are visible from the front. Persian, unlike Imperial holsters, have cleaning rod sheath ears that are integral to their lids, not sewn on discs, and the closure straps are attached with two lines of stitches, not three like on Imperials, or a square of stitching like on the Pakistani fakes.
Those interested should compare Patrice's photos with those on the P.I.A. website.
Best regards, Norm
http://www.phoenixinvestmentarms.com/1733Persian34.htm