This is most definitely the real deal so rest easy.
That being said, there is a seller on ebay, where I'm assuming this was purchased, that has a reputation for polishing/buffing 3 cells and selling them. He goes heavy on these things, so that's where the finish comes from as well as the rounding of the beer tab rivet and slide switch.
One other thing to mention also is that the clamp is of much older vintage than the top and bottom tube. Possibly swapped from another graflex.
Every part I see there is vintage though for sure
I've been looking at these photos for a few days now and comparing them with my authentic Graflexes and with the Parks that I have (currently half-way into being converted to a ROTJ Shared Stunt). I don't want top stir things up or be a wet blanket but I really disagree and feel that this is a Parks or similar replica that's been fooled around with. I offer my opinion and will gladly withdraw if I am mistaken but the things that just look way "off" to me are the general overly shiny finish inside and along the edges of the bulb clamp area, the clamp lever, the slotted screw, and the slide switch. The slide switch in particular -- and the fact that it has been sanded down -- are major clues to me. No one has yet to nail the look of the slide switch exactly; especially the usual matte finish of the baseplate -- which here is very shiny and has a grain to the metal identical to the one from my Parks. The clamp lever has this same grain and brightness to the plating. All of which are very suspicious to me when combined with sanding, or whatever was done to the finish, that hasn't left any evidence of aging/damage in nooks and corners where you would expect to see it. In fact you see the opposite -- very bright plating where the sandpaper/steel wool has passed over things.
Again, I'll be happy to be wrong about this, and if my arguments/observations can all be countered then so much the better but to me it just looks "off" and I can't stop feeling that it just isn't right.
Dave C