I was about to say I was unable to comment on gallery photos. But apparently a recent software fix changed that. I added one comment. I'll go have another look now.
Not seeing Vacor. Not ruling out non-U.S. And have seen some interesting early Vacors recently. (1960s)
But it's not a Vacor I recognize. And that seam in the last picture looks vintage to me.
But who?
Only the one seam?