Ludwig Mies van der Rohe's Barcelona Chair is a timeless classic and it could very plausibly be in a future Earth home, as could any Mies van der Rohe design. I

Ludwig Mies van der Rohe's Barcelona Chair is a timeless classic and it could very plausibly be in a future Earth home, as could any Mies van der Rohe design. It'd be worth a small fortune in that condition. The Emeco Navy Chair is another one that could plausibly appear in a future Earth setting. Putting the Goodform Model 2123 in the offices of the alternate future/past in "Assignment: Earth" is a nice touch. I have a hard time believing anything from IKEA not have fallen apart in a couple of centuries.