"Is that a paintbrush?"
One of the most common questions in our store is about these guys. They look like a pencil/paintbrush combo, but they're actually erasers! They were designed for typewriters back in the day, with a hard, scrubby eraser that could reach into the heart of the machine, and a convenient brush for clearing away the dust. Faber-Castell still makes one--the Perfection Eraser--and we have a few of the gorgeous red and mint vintage AW Faber Litho-Rubs too.