Well, I just picked it up this morning... took it into work... opened the nice carrying case... and the back says 512k. Sigh. I'll have to open it up and take a peek at the guts, but I don't recall any 128k Mac upgrades that involved replacing the case - which is what I was most interested in. Oh well, it was free and only 2 miles from where I work, so I can't complain too much. It did come with a very long hex screwdriver and a nice carrying case, so that's a win.

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There was a 128k to Plus upgrade that involved replacing the back case since the ports on a Plus are different than those on a 128k. I actually have a Plus upgraded one here.

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True. I should have been more specific...128k to 512k upgrades that replaced the case.

I'll trade you for the 128k that you just picked up!

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Heh, no thanks. I gotta see what's wrong with it and if it's still all original. It has all the original ports sticking out the back so it probably hasn't had a motherboard swap, which is good news but that doesn't mean there isn't an aftermarket upgrade inside. There was an extremely rare upgrade back then that boosted it to 4 megs system RAM and added a 2 meg RAM disk but those are extremely hard to find so I wouldn't expect to see one when I open it up. Some people also piggybacked additional RAM chips onto the existing ones. I sure hope that hasn't happened with this one.