Hey guys I purchased something that the seller wasn't able to identify - but I figured it out right away. It was a T-handled rod with a socket on the end and the words 'THOMAS A. EDISON INC.' stamped into the metal of the handle. It is an Edison spark plug wrench!!!! I had never seen one, anyone here have experience with it? I am taking it to the CAPS show next month, don't know quite what to price it at, any ideas? Also what models/years of auto did the Edison plugs fit? Twenties and Thirties, I would think...I should get a couple of Edison Spark Plugs to sell with it! Here is a link to pics. http://s197.photobucket.com/albums/aa39/john9ten/Edison%20Wrench/ John