A 1929 U.S. patent for a pencil display, assigned to A.W. Faber “Castell” Bleistift-Fabrik. I don’t know the significance of the quotation marks used for Castell here (i.e. rather than a hyphen). I believe the company name had changed by 1905 so perhaps it’s just an artifact of 1920s punctuation, or maybe an aspect of usage I’m unaware of.
A question though for our German readers: Is this meant to represent a particular character, or is it just your garden variety pencil gnome (or perhaps it’s a pencil variety garden gnome)?