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.