I don't assiduously pursue desk sets, though I occasionally acquire those that catch my fancy. Mostly I have bases for Parker Vacumatic as the bases relate to my primary focus. So, after recently learning about the following base, when I encountered one at a nice price, I opted to grab it. Not yer usual Sheaffer base... (hit the "magnifier" if your browser shrinks it to fit) http://vacumania.com/penteech/sheafferdesksetdeer850a.jpg regards david