I have old wall plates can anyone tell me how to know if they are of tin or brass?

thanks

Use a refrigerator magnet if the tin brass or copper stick if I can not lill lady oh you're welcome

WALL PLATE TO CONCRETE THE START TO BUILDING BASEMENT WALLS

Cuisinart GR-4N 5-in-1 Griddler $185.00 The Cuisinart(tm) Griddler makes "multifunctional" an understatement! Make perfect panini... plus! With four separate cooking options, it can handle everything from pancakes to sausages to grilled cheese to steaks, hamburgers and panini. It helps you prepare more servings of more kinds of food in less time, so you can cook for a crowd -- no one has to wait!Simply change the cooking plates and adju...

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