You are bidding on a vintage flexible gray Western Electric patch cord.  It is in very nice condition, having seen very little use.  There are 1/4 inch three conductor jacks on both ends, and the total length is slightly more than 6 feet.  The ID tag is labelled 3P7A, and P3B.   It should be useful for someone.  Shipping weight is 8 ounces.  Please see my other auctions for more interesting radio and audio items, and tubes.