The product is a very rare 1984-P Dime that was struck on a proof pllanchette, weighing 2.31g and very thick. It revised the 1984 business strike on the proof planchette. This error coin is a circulated Roosevelt Dime made of copper, minted in Philadelphia in 1984. It is uncertified and belongs to the category of US error coins. Extremely rare and a great find!!!!