Perhaps, but even the non-shiny one features the same/similiar hairlines across the fields - which could very well be a property of die polishing or even a treatment of the blanks before striking. I also would expect that polishing would cause damage to the design, creating weakness to fine features rather than just removing the matte texture, yet the design is fully intact and very sharp. I am trying to get my friend, who has a PhD in material sciences, to have a look to see if he can determine if this is a production or post production property, so fingers crossed he can find some time to do so.