Our Amiga 1000 system is clearly not as early as the "black box" development system that you gave a link to. Ours seems to be very early series production, prior to FCC approval, and was used for actual software development. The black case unit looks more like a short-run proof-of-concept system than something most developers would have trusted to write code on for production. Photos of the "not for sale" and SN stickers from our system are attached.