When I first got my Underwood Electric, it had the remnants of a '50s Underwood logo decal showing on its gray wrinkle paint.
The wrinkle paint has been blasted off, but the logo is back—in 3D.
Someone was selling a bad manual Underwood for $15, Buy It Now. They were happy to accept an offer of $15 just for the logo. It turns out that this logo is very thin stamped metal; in order to strengthen it and to have a flat surface on its back that could be glued to the typewriter shell, I filled in the back with Milliput. Now it's been epoxied to the shell and is drying.
A point goes to whoever can identify the object at the bottom of this photo.
Hint: like Milliput, it's a British product.