Hi everyone, I live in South Africa and am very new to this game. I need some advice please. On auction shortly is a Brass and Metal Tonum size 14 Steam Locomotive Headlamp by J Stone & Co. It is in very good condition - very heavy. Can anyone give me an estimate on what this item would be worth, there do not seem to be many about. Think I have added 2 pictures.
Any information gratefully received.

regards Mickafrica