Forgive me if this is obvious but I am very new to metals. This brush was given to a family member 30 years ago and told at the time that it is valuable and that it is silver. It has no markings on it at all. Neodymium magnet doesn't stick at all, I gave it two bicarb foil baths which took a lot of the black off. I lightly scratched that shiny spot on top with metal scourer. That 1oz bar shows the difference in metal colour. The metal is very dark grey and the more I look at it has me thinking pewter or lead? Edit..... I just performed an ice test using that 1oz bar as comparison, two same size ice cubes and the hair brush melted first!