Krieghoff E2 proof?

[Walt NW]

Now that is a great picture! Unfortunately, the one following is the best I can do with my little 2 mp Kodak, but hopefully, it will get the idea across.
As shown (barely and sort of) my double date police has the horizonal crown N's on the right side of the receiver and frame rail and I understand that only Krieghoff reworks were stamped with these markings in this location. However, there are no E2 inspector stamps on this piece. Bottom line question, is this a Krieghoff or not?