The Engelhard name assures the ability to sell or buy silver bullion bars with absolute confidence no matter where in the world the precious metals investor is. Engelhard is one of the oldest names in precious metals market and the company has built an enviable reputation for producing silver bullion bars with great quality and purity. By the mid-1970s, demand for silver bars was very robust, and Engelhard company began minting .999 pure silver bullion bars. 100-oz Engelhard silver bullion bars were minted until the mid-1980s when precious metals investor interest waned. 100-oz Engelhard silver bars can still be bought today from silver dealers, private parties or online (Ebay, Amazon and online dealers' websites). Since Engelhard company was a world leader in refining silver at one time, there is a lot of Engelhard silver bars and silver bullion rounds in circulation among precious metals investors, silver coins and bars collectors and traders. Whether your purpose is investing in silver, collecting silver bars from different manufacturers or preserving your wealth by buying precious metals products like rounds, coins, ingots and bars, 10-oz and 100-oz Engelhard silver bars are a good choice. Most Engelhard 100-oz silver bars are extruded (maybe 20% are poured). Because of the bars are flat and wide, 100-oz Engelhard silver bars stack and store nicely, making them ideal for storage in safe deposit boxes. All extruded Engelhard silver bars measure the same but poured Engelhard silver bullion bars can vary a little in dimensions.