Welcome to our listing..for 4 antique cut glass door knobs. They appear to be 2 pairs but there are some missing ormolu type metal fittings. A delightful quality and heavy. The glass on two has a flat top and the other two end in a point.  I have not been able to use them as intended as my doors are pretty lightweight and hollow. These were designed for a more robust wooden door than I have --- they need some extra parts but are wonderful examples not made today---