So I found yet another prototype this is a more PVT based machine but there is some very odd features. To start the EGRET is unlike any I've seen before I can't find any Macs that use this variation of EGRET. Of course being that it was close to production there are no on Board ROMs so we'll see if that's a prototype ROM too. A few chips look slightly different from the six actual standard and OEM iisi boards I own. I noticed as well PVT is marked on the right angle NUBUS adapter and also on the bottom of the case. Supposedly this is running System 7.06 ("whatever that is?"). I added images below but being that I haven't received said machine we have to wait and see. Photos I have are below.