They probobly either got greedie and kept the RF guts (they're pretty nice, I used tehm in one of my helmets for a long time) or this could have simply been a prototype DP ROTJ paintup if it doesn't appear to be a repaint. But if that's the case, the paque doesn't go with this helmet, because I've seen #600 + that were the same cheesy ESB paint jobs. But for them to get to the ears to remove them for stripping paint, they would have had to rip up the lining and the plaque. Hence the seperate plaque.
Dude, It's a DP DLX bone structure without a doubt. Wether it was a proto, or a production, it doesn't matter, it's still a DP DLX core. The casting of the helmet, bondo filler here and there, metal ears with holes, visor "T" inside like the DP vinyl helmets, the front monted visorect. ect 
Can't stress it enough. This isn't an opinion ... 
If you want PROOF POSITIVE, rip the t-visor out. If you're going to redo it anyway. You will find that the plastic visor is actually embedded under some filler in "tabbed" areas on each side of the red portions of the helmet on each side. That cannot lie.
FP
