Is anyone familiar with the backstory for this prototype Darth Vader seen below? They are available on ebay, and appear to be based on the POTJ Dagobah Vader (w/ Luke under the mask). This figure however has a solid head sculpt with no removable mask. The proto is also cast in a lighter shade, and is more transparent. It has zero deco applications. No weapons or accessories, but it does have a stand that was released years after POTJ era figures (2012 Discover the Force / TPM 3D line). It reminded me of a ghostly Vader, so I ordered one. Its on par with Hasbro quality, and doesn't look or feel like a cheap bootleg. If anyone knows more, please post.