This is the DS, LH rear door vent window frame assembly from a 1958 Cadillac Sedan / Fleetwood. The part number is 4239458. This will fit all 1958 Sedan & Fleetwood models, but it is unique to the 4 door models only and will not fit 2 door models, or Eldorado Brougham. Please verify that it is correct for your application before purchasing. The chrome on this one is really very nice still, as shown. The chrome frame around the actual glass does have rust and should be re-chromed, but the main heavy part of the frame has nice original chrome on it still. The glass is not broken, it's still intact, but it does have some air bubbles in it. You can see this in the pictures, but it’s flat glass and a new piece can be cut at any glass shop. This could be used as is, or as a core unit sold for repair / restoration before use again. Sold As Shown, As Is.