When a locomotive bell was separated from its yoke and bracket, it was probably destined for scrap. It will be quite difficult to get the appropriate clapper, yoke, and bracket for this bell. As is, it is probably worth about $500-$750. EWith all of the hardware, it would be worth about $1200-$1500. If you want the bell, accept it as is and keep on looking for an intact Locomotive bell.
Harry Long, MD