tell you the truth its hard to believe that apple II clone or whatever was damaged like that during shipping. Expansion cards don't get unscrewed and come out on their own and fly around inside of a case. It must of been like that and then whoever sold it shipped it like that because they were dumb.
the expansion cards in that particular style machine aren't screwed in, there are no brackets on them, all the connectors go out via cables, it was packaged in a big box with just one piece of styrofoam holding it in position on top and a few loose pieces around, so yes it could easily rattle around inside the box and I'm 100% sure the damage was from shipping, probably the package was dropped, and there not being any soft padding below, it just smashed the bottom in and probably rattled all the cards loose.
I gave the seller some tips to do better packaging in the future, i.e. stuff the inside as well and wrap the whole thing up so loose parts can't hit against each other increasing the damage, and they apologized, I don't see the point in making a big fuzz about it considering the price I paid... I hope I'll get around to fix it up again some time.
You may have a somewhat historical system there! If you had plenty of times you could skim through the old Creative Computing mags on archive.org - they had a lot of ads for Apple II clones in the early 80s, and a column dedicated to them for a while IIRC.
It could also be a homebrew or one of the non-US clones... I would love to have access to some of the output of some of the domestic industries of places like Brazil and France that tried hard to have their own large domestic industries in the 1980s (actually a lot of countries did, I learned some about Norway's last year).
it looks kinda home-brewish, but seeing is this is a purpose made case with the same port locations as an apple II from the looks of it it just looks like a job from a small firm probably, since I bought it from germany and the floppy controller seems to be from germany too it was probably some small company buying the parts and putting those clones together there.
this machine seems to be from before my time ^^ according to the datecodes.