So what I thought was a junker 512k might be a prototype.

I started to strip it for parts, but I noticed some weird things.

For starters, both the bucket and the bezel stickers are missing.  They're not just missing, there's no indication that they ever had stickers.  It's odd.

As I opened it, the analog board was different.  It didn't have the regular shield, but one simply cut out of cardboard.

The motherboard says TPB-D.VO but I don't know if that's a coincidence.

What do you guys think?  Prototype?  Or bad repair job?