Card Identification Forum

Can anyone help me with the difference between the Hobby and Retail 2013 Topps Strata.  I know the rookies have different photos but the card (Von Miller) has the same photo.  I dont know if I have two of the same one but I thought they were supposed to be different.  Thickness is often a difference as well as color.  Even in the pics on both look the same in the database.  There is no note or explanation of the difference.  One place I looked, it seems that there are not as many variations.  Just looking for a little help.

Thanks