You are bidding on a Western Electric Type 425B Net, network for telephone.  It came from a telephone collector's estate, and appears to be complete.  It measures roughly 2 5/8 by 1 7/8 inches in cross section, and is 1 3/4 inches tall, not counting the bottom mounting bar.  It should be useful for someone.  Shipping weight is 16 ounces.  Please see my other auctions for more interesting radio and audio items, and tubes.