This is a must-have for any serious bullion collector - a rare vintage 5.70 oz Rocky Mountain Mint silver bar with a unique error. The bar features an upside-down design, making it a truly one-of-a-kind piece. Made of 999 silver, it has a beautiful shine that will make it a standout addition to any collection. The bar is shaped in a classic bar design and is composed entirely of silver, making it a valuable investment piece. Add this highly sought after piece to your collection today!