I was going through my parents' storage and found some boxes from my days at Nintendo. Inside I found some SNES controllers. Most had the familiar "Super Nintendo" text printed on the front, like so:



But some have the Nintendo logo engraved on the controller, like this:



(both are hotlinks, forgive me internet gods)

So what's the difference? I notice that on the engraved version, it actually has the super famicom logo on the back next to the SNES logo, and has the model no. SNS-102, whereas the more common version has model number SNS-005.

Any thoughts?