tried scratching the surface with no problems, gets shiny. not stainless as it's magnetic. have a slight goldish and silver tint to it, anyone have any ideas if it could be some sort of electro plated, or is it just in my head?
The underside of the top plate have no discolouration to it, looks like mild steel, so I'm thinking the top surface could be discoloured over the years due to use.. or it is as Steve says, could it be stainless....?