I wanted to get some opinions on my Series of 1934, Federal Reserve Note (green seal) $10 note:

It is very crisp, and yet there is a stain on the upper right corner, several tears on the upper edge (in one of which strands of the note's cotton/linen material is visible) , and in some places, the note itself is a little worn. Of course none of this necessarily means it's fake, but I'm not 100% comfortable with it and would like some reassurance.
Finally, I'm not familiar with US notes but the margin on the bottom of the back seems to be excessive in comparison to that on the bottom of the front. Is this expected, or worrisome?