This is a simple stand designed to hold an Amstrad CPC 464 computer in a vertical position on a shelf, table, or similar surface. Print two in your choice of filament (PLA is perfectly strong!) and you're good to go.  I added some thin rubber strips on the bottom to stop it sliding around, but not at all essential as they're very stable in use. 

I assume it would work with the Schneider 464 as well, but I don't have one to test with. 

No supports needed, print laying flat on the side with recommended 20% infill and 3 or more walls. 

Thanks to @AndreToschlag_373636 for the original model which I borrowed the tricky dimensions from!