I just bought this one from a local drummer http://www.ebay.com/itm/Rare-vintage-Camco-bass-drum-pedal-Oak-Lawn-Ill-logo-/140609320327?pt=Vintgae_Drums_Percussion&hash=item20bcf7f587
I've only seen one of these in the past! The outer casing is aluminum instead of cast. And as far as I know it's the only Camco product that spells Oak Lawn correctly instead of Oaklawn as seen on their badges, catalogs and parts.