This is an earlyish Amiga 500 produced in late '87 or early '88. It has a Rev 3 motherboard, the Chickenlips, the Hi-Tek/Space Invaders keyboard and a RevA floppy drive with the soft eject.
After a wash it didn't look too bad, the case is nowhere near as yellowed as my other 500's.
It took a bit of work to clean up, there was a fair amount of grime, and it looks like it's had a drink at some point during its life too
Worse bit was testing, I noticed one of the mem chips looks to have been replaced and the green screen suggested another had possibily gone.
However following advice posted on this forum by Steve in the past, I removed Agnus and put her back in, and...
Nice
After reassembly I tested the joystick port with a few games of Buggy Boy and F/A-18. All seems to be working, a few sticky keys just needed a bit of encouragement to engage but all good there too. I now need to clean up the RF Shields, I'll probably just sand and paint them. There's also a small bit of damage to the back of the case that shouldn't be too hard to repair - looks like a switch was installed at some point.
No idea what I'll do with her long-term, I've another two A500's that are better to use due to expansions and I don't think I want to mess with this one too much as I don't think there's a huge number of A500's this age out there.