Old Captured Alien Picture
Found by googling "mckennerich phoenix aluminum man" -- key words taken from Keyhoe's book.
Like so much in the UFO field, this has elements of hoaxery and genuineness. Genuine in the sense that the little man is clearly not quite human, not quite monkey, and fairly detailed. The little guy doesn't seem to be an obvious fake. The picture however, is likely faked. As I have noted before, I think this is a common strategy in the UFO field, to taint every piece of evidence as a hoax and discredit the ideas of ET UFOs. And I'm sure this is done in every conspiracy field, as well.