I don't believe it's a Rubies copy. The Rubies had much of the details present on this completely sanded down and "idealized" along with additions to bulk out the undercuts of the mask that would make mass production problematic for the molds (massive goiter in the neck, thickness of the eyes and nose, nose bridge details, cheek shapes, greater neck flare, sides of the facemask bloated to kill the curves, etc). The mounting system for the Rubies is completely different too. This still retains a lot of the original details that are only shadows extant on the Rubies. I would say this came from some kind of DP bucket, and possibly the one that the Rubies is built from.