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My Underwood three bank.
Slightly beat-up compared to my four bank, but still presentable and a good typer.
The platen is cork, but I've not yet explored to see if its rollers are the same material (I had a quick look, but couldn't actually see any).
The two nuts holding down the spool caps are missing and one of the paper clamps (the left-hand one) is missing, which does compromise performance a little.
There is no overhead bale (the swing-down bar that holds the paper down). I though this might be missing too, but I've looked at pictures of other three banks and they don't seem to have one either.