Identify old PC

[John Foust]

Pardon the post of content from elsewhere, but this one had me puzzled,
perhaps because I'd been puzzled earlier the same day by a IMSAI advert
(http://www.vintageadbrowser.com/computers-and-software-ads-1980s/19) 
that showed something other than an IMSAI 8080.

Does anyone recognize this old computer (from Reddit)?

https://www.reddit.com/r/vintagecomputing/comments/9pc7sx/help_identifying_this_old_pc/

- John