You are bidding on a brass Zenith Radio emblem/insignia, along with two Zenith knobs.  These are in nice condition, and likely came from the same early 1950's Zenith radio.  The brass emblem has tabs on the back for attachment, and is 1 5/8 inches tall and 5/8 inch wide.  The knobs are black plastic, and are1 3/8 inches in diameter, and 3/4 inches tall.  They are designed to fit on a standard reeded shaft.  They should be great for your restoration.  Shipping weight is 6 ounces.  Please see my other auctions for more interesting radio and audio items and tubes.