Does this Allgemeines Sturmabzeichen Alois Rettenmaier Look Authentic?

[Shockwave]

Wondering if this Allgemeines Sturmabzeichen looks good as an Alois Rettenmaier.
What are the distinguishing features of an authentic Alois Rettenmaier GAB? I've read that the hand filing on the back may be one indicator. Is there anything on the obverse that identifies this as a Rettenmaier?
Thanks, Ron

[Adrian]

It's a nice badge Ron. The dealer is reputable and it is a Rettenmaier based upon the reverse hardware and the obverse details matching other badges attributed to this maker.

[Shockwave]

It's a nice badge Ron. The dealer is reputable and it is a Rettenmaier based upon the reverse hardware and the obverse details matching other badges attributed to this maker.

Thanks Adrian. This seems to be another maker with nice sharp detailing on the eagle. Ron

[Adrian]

The striations on the reverse are a feature of Rettenmaier. You see it frequently on their badges.

[rbminis]

It looks fine to me as well.
Ralph.