Are there any more photos? Close ups of the chips and the ports might help. I tried looking up the FCC id number, but I think some of the necessary characters for the search aren't printed.
Also, on a related topic for the BBOAH, there's a seller on eBay called computer_preservation who seems to have a whole bunch of unreleased/prototype/engineering boards for sale - you might want to take a look to get those added to the database.