Any Information on this Photo

[LManz]

Can anyone provide information about this picture?  This is a distant great-great uncle.  What is it a picture of?  About what year might this have been taken?  Is it definitely a Stahlhelm uniform?  Is there a rank noted?  Do the numbers on the collar represent a reserve unit?  What is the likelihood that the person in this picture would have become part of the SS?

Any help you can provide would be appreciated.

Thank you in advance.