The 10 oz Johnson Matthey Silver Bar Sealed is a highly respected bullion product among investors and collectors. Johnson Matthey is a British multinational company with a long history in precious metals that dates back to the early 19th century, and it has long been synonymous with quality and reliability in the world of precious metals. These silver bars are typically stamped with the Johnson Matthey logo and contain 10 troy ounces of .999 fine silver. The "sealed" part of the description indicates that these bars come encased in protective plastic packaging, which helps to maintain their condition and authenticity.