This was from a relative's estate and I believe it's stored in its original box for the last 40 years. It was stored in a cool, dry place, and I see no signs of corrosion or damage. I can't guarantee it works, because I don't really have a way to test it, but the other Atari items it was stored with all seem to power on. It may have been unused.

I'm really not an Atari expert, so if you have specific questions, please ask them! And check my other listings for more Atari items.