Here's the album for the notch. The verdict is still out on authenticity.

SVT 40 Sniper ID Information - Album on Imgur

---------- Post added at 09:18 PM ---------- Previous post was at 09:14 PM ----------
Quote Originally Posted by jjjxlr8 View Post
Excellent photos!! I do not think this is an original sniper for two reasons - lack of the proper markings on the right side of receiver and more importantly the serial number. Looks like a nice SVT40 and would be fun to shoot with a scope - might as well take advantage of the notch! You might as well post pictures of the non-factory notch, too.
It's been mentioned by a reliable source that not all original sniper rifles had the right hand receiver C marking. I have also been told by the same source that the notch may be. factory expedited.