Ticonderoga Ticonderoga by Vladimir Nabokov

I've noted elsewhere Nabokov's affinity with pencils. I am reading Pnin at the moment and here's the magnificent passage on sharpening (and more):

With the help of the janitor [Pnin] screwed on to the side of the desk a pencil sharpener - that highly satisfying, highly philosophical implement that goes ticonderoga-ticonderoga, feeding on the yellow finish and sweet wood, and ends up in a kind of soundlessly spinning ethereal void as we all must.

Photo by causalloop