Dean my GHE 16 damascuss doesn't have a vent rib, it does have a Parker BTF w/reinforced lug and SST. Perhaps your thinking of the GHE 16 vent rib gun I had at Hausmanns? Unfortunatly that gun resides elsewhere as it was part of the trade for the Holland & Holland. I hated to do it but I rarely shot it and you can only keep so many. I do have a 30 inch VR,BTF,SST 20ga DHE that might be considered a trap gun. That one will never get away