06/17/2024 01:53:09 PM
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100 oz Silver U.S. Assay Office Struck Bar

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In the heart of the 19th century, assay offices were established in New York City and San Francisco to evaluate the quality of vast quantities of gold and silver bullion from the American West. As history unfolded into the 20th century, one of the final chapters saw these offices refining silver bars dumped into the market in 1980 and 1981. Now, Provident Metals brings you the opportunity to own a piece of this history with our 100 oz Silver U.S. Assay Office Struck Bars.


  • Arrives with protective plastic packaging!
  • Crafted from silver formerly housed by the New York or San Francisco Assay Office!
  • Features a struck format!
  • Contains 100 Troy ounces of .999 pure silver.
  • Stamped identifiers on the obverse of the bar.

The 100 oz Silver U.S. Assay Office Struck Bar available through Provident Metals comes protected in plastic packaging for secure shipping. Crafted from silver once stored at either the New York or San Francisco Assay office, this bar contains 100 Troy ounces of silver content, at least .999 pure, in a striking format. Both assay office names are prominently featured on the bar, reflecting their potential origins.

Please be aware that older bars like these may exhibit signs of aging such as toning, a natural occurrence due to the oxidation process that does not detract from the value of the silver in the bar.


On the obverse side of Silver US Assay Office Struck Bars, hallmark identifiers are arranged in landscape orientation, with stamped markings showcasing weight, purity, and metal content. The names of both assay offices are prominently featured here.


The San Francisco Mint, which operated adjacent to the assay office, was responsible for minting coins from the gold and silver that passed through the office. The U.S. Assay offices were crucial in helping produce silver ingots in the early 1980s that the United States government used to flood the silver market and drive down the price of silver as the Hunt Brothers famously tried to corner the market.


If you have any questions about our silver bars, please don’t hesitate to reach out to Provident Metals. You can contact us at 1-800-313-3315, chat with us online, or email us directly.

How Does Free Shipping Work?

When the subtotal of your purchase, including applicable discounts, is $199 or more, you receive free shipping for your entire order. In order to receive free shipping on purchases of $199 or more, you must live within the 50 US states. For orders less than $199, a $9.95 shipping fee applies. All products are discreetly packaged and shipped with full insurance included.

When will my order ship?

Most Provident orders are shipped within one (1) business day of your payment clearing. Payments made via PayPal clear instantly. Bitcoin payments clear instantly once the transaction is confirmed. Credit Card and bank wire payments process within 1 business day. ACH and paper check payments take 3-5 business days. Once payments are processed, products are released to fulfillment for packaging and shipping.

Can I choose the method of shipping?

All orders of $199 or more that are eligible for free shipping are, by default, shipped via a carrier of our choice (USPS or UPS). Depending on the contents and size of your purchase, you may be able to upgrade to a specific carrier during checkout.

Will I need to sign for my package?

For those orders of $999.99 or less, there is no need to sign for your package. However, you may select the option to require a signature at delivery if you want. This can be chosen and paid for at checkout. All orders of $1000 or more require a signature to complete delivery.

What about International Orders?

Provident is only able to ship to addresses in any of the 50 US states. This includes P.O. boxes and APO addresses.

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Product Details

Mint Mark Not Shown
Metals Purity 0.999
Condition Secondary Market
Edge Style Smooth
Certificate of Authenticity No
Packaging Sealed Plastic
Metal Content 100 Troy Ounces
Shipping Orders over $199 Ship Free
Provident ID 4067269