Original Vintage Elegance - historical Cast Iron Radiator / Clock Key.  Ideal for Collectors or Antique Lovers, these keys reflect the craftmanship of bygone eras (with the distinctive "whale tale" shape and "P-Mark").  This is a "double-ended Winding Key", often used as a Radiator Bleed Key (to bleed air from old-fashioned Radiators) or for Clock Winding.  Cast Iron Radiators emerged in America around the 1830's, during the Industrial Revolution.  This item can be shipped nationwide to the Winning Bidder - or picked up for FREE after the Auction in Enfield, CT.  Makes a fun decoration or a unique gift!