Got this on craigslist. The lady said she got it from an Apple employee in the 80's, that it was a display model for retailers? It's a Macintosh Plus w/ 4MB ram. There's a plexiglass window on the right and back, no window on the left. I can't find any reference to this on the internet, has anyone ever heard of it? Any idea what it might be worth? (not that I'm gonna let this thing go ) Edit: Okay I took a few more photos. I hafta say I doubt this is a mod done by a retailer, everything about the installation is very professional. There's some sort of number etched in the bottom of the left window, pictured. Any insights, anyone?