Saw one of these today and wanted to see what your opinions were. Thanks for the help!

looks good from here. In hand I like to see the "seam" and be able to see "under" the frame, to be sure it is 3 piece construction.

Really good looking 1939 Iron Cross 2nd Class. I think it's genuine.

 

Indicators...  the black paint looks good.  That paint contains lead, and it gets a "sheen" or "patina" when it's been exposed to air for extended periods.  The tarnish on the outside frame makes it look like a mid-to-late war piece.  

 

If you can, check the suspension ring for a hallmark.  The absence of a hallmark on the suspension ring doesn't mean it's fake. 

 

Also... the litmus test... the center should be magnetic.  Iron Crosses are made from iron.