Gold Corporation
The Gold Corporation, according to Silver Monthly, issues $100 silver certificates through their Perth Mint Certificate Program. Purchasing from the program has certain benefits; most important is the backing of the Australian government in the case of business bankruptcy. In fact, the silver certificates issued by the program make up the only government-guaranteed silver certificates in the entire world.
Liberty Services Inc.
Although it doesn't offer $100 silver certificates, according to Silver Monthly, Liberty Services, Inc. offers $20 silver certificates to customers. These $20 certificates offer a locked rate of $20 per ounce of silver, as of 2008, despite the current price of silver. For example, if silver costs $14 per ounce, the cost of the liberty dollar would still remain $20. This means that you cannot use the silver purchased with Liberty Services Inc. to hedge against inflation, according to Silver Monthly.
Antique Dealers
Perhaps the most available silver certificates -- antique silver certificates -- no longer represent interest in any real silver. However, many collectors of paper money find a historic value in silver certificates, including the $100 note. Auctioneers on sites such as Ebay or local antique dealers may provide you with $100 silver notes. Remember, however, that the value of the certificate no longer rests in the value on the face of the certificate, but in the rarity and historic value, so pay attention to the year, condition and previous ownership of the certificate.