The guy that owns 7.62x54r.net, name is Ted. He goes by the screen name of 7.62.54r on gun forums.
His site 7.62x54r is the best place to look up info on Mosins. It does get updated from time to time.
The crest on this rifle does look like the one in photo #8 on that page, but this rifle will throw a kink in that pag of infomation.
It says that the crest is for a late prodection rifle and that N.E.W. started with SN#1 and continued until the end of production. This rifle's SN# is 1911, which puts it as a very early production rifle with a late production crest.
Ted also has a forum, 7.62x54r.netforum ,It is a great place to get info and to ask questions for info on Mosins. It is a very strict Collector's forum. Ted is a Purist in the 1st drgee and runs his forum with an iron fist. If you post there, stay within the rules, or they will come down on you.
I think I will post this rifle over there and see what they have to say about it.