100 oz Silver Bar

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The 100 oz silver bar is a silver bar size very popular with serious investors. Bars of this size are not typically viewed as collectors items and are seen solely as no-nonsense investments. These bars are a standard denomination produced by all the major silver bullion manufacturers of the world and enjoy the benefits of the economy of scale, meaning that even though the silver in them still sells at the "spot price", their overall cost-per-ounce is typically lower than that of smaller bars due to relatively lower premiums / other transaction costs.

Like other silver bullion bars, 100 oz silver bars are typically manufactured at .999 purity (99.9%) and this will be stamped on the bar along with the weight, manufacturer's stamp and (most often) a serial number. Bars often come boxed or with a certificate of authenticity - which should bear a serial number identical to the one on the bar. In addition to Engelhard (pictured to the right), 100 oz silver bars have been produced by Sunshine Minting, Royal Canadian Mint, Johnson Matthey, Heraeus, Kitco, Academy, Heaeus, Credit Suisse, Pan American Silver Corp, Wall Street Mint, NTR Metals and others.

Unlike 1 oz Silver bullion coins (such as Krugerrands and U.S. Silver Eagles), which typically have the backing of Government, 100 oz Silver Bars are not government backed but are certified by their manufacturers. For this reason it is often advised that investors buy silver bars manufactured by renowned bullion companies - such as the Engelhard bar in the image. This is because these have been certified by assay to contain the stated purity and weight of pure Silver.

100 oz Silver Bar Dimensions

100 oz silver bars vary in length, width and height depending on the manufacturer (but you should of course find them to be the same weight!) The stackable 100 oz minted bar from Academy is 6 1 /8 " x 3" x 1 1 /8 - a little smaller than a standard hard drive in size (but larger than a tin of sardines). Other minted (i.e. pressed) bars will be of similar dimensions, however cast (poured) bars are often deeper and "chunkier" in shape.

Fake 100 oz Silver Bars

Buyers should be aware that there have been a few instances of forgery of the 100 oz bars. This started in the 1980s when there was a huge run on the price of silver. The good news is that only a few of these bars have actually been found. About.ag has 2 excellent pages investigating these bars in depth. They appear to fall into two types - "drilled and filled" and "silver plated". The silver plated bars are not difficult to detect if you know what you are doing - the fakes were underweight, the appearance is "wrong" in several ways and looks imprecise and clumsy. In particular, the buyer is warned to avoid buying from an unverified source - especially if the price is below spot. Also, avoid anything stated to be "100 mills" - this means silver plated only!

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