These Election Pencils were made by the American branch of A.W. Faber, and are examples from the larger category of “voting” or “ballot” pencils. What makes it a voting pencil? Probably by virtue of being labeled as such, and being placed near a ballot box. (Borrowing from Wittgenstein then, a pencil’s type is defined by the application of the rules for its use?) One identifying feature found on some voting pencils is a ferrule with a hole in it, allowing for a string or chain to be attached:

Something makes me wonder though: Of all the kinds of pencils that were indelible, wouldn’t voting pencils have benefited from being able to make a more permanent mark?