Up for auction is a super rare 1973 Chess piece called "The Bishop" Pure Silver Bar with a composition of 999 fine silver, containing 1 oz of precious metal content. It is a unique piece minted by MADISON MINT, making it a highly sought-after collectible item on eBay. The bar pays homage to "pawn" chess pieces and is a true gem for any collector or investor looking to add a rare and valuable piece to their collection.