Frequently Asked Questions
1
What services does BAC Grading provide?
We are currently encapsulating bullion in our BAC original holder (medium-sized) and providing a Collectible Certificate of Authenticity Card for larger items. Our smaller holders will be available in January, 2026. Click on the BAC Stacker Club page to see details and pricing.
Services:
-
Authentication
-
Grading
-
Encapsulation
-
Certificates of Authenticity
2
What does BAC stand for?
Bullion Authentication Company (BAC) is the first company fully dedicated to authenticating and grading vintage & modern precious metal items. No other company in the world is more committed to preserving vintage bullion history and legacy than the Bullion Authentication Company (BAC).
3
How does BAC Grading grade bullion?
Bullion is graded on a 1 to 10 scale derived from the Sheldon Scale. BAC's grading scale is comparable to scales used for coin grading.
In addition, bullion may earn a highly coveted "star" notation if the piece holds the following attributes:
* Solid original condition and natural preservation;
* Extraordinary eye appeal; and
* Unique characteristics to the item type.
BAC estimates that less than 1 in 1000 of the items received for submission will receive this special BAC Star accreditation.
4
Where is BAC Grading located?
BAC Grading is located in Casa Grande, Arizona, known for historic gold, silver and copper mining. Our mailing address is: BAC Grading, Attn: M. Greenwood, 1377 E. Florence Blvd., Suite 151-77, Casa Grande, AZ 85122.
5
What is the difference between vintage and modern bullion?
Vintage bullion is defined as bullion that was produced prior to 1990. Modern bullion is any bullion produced from 1990 to present. BAC Grading also recognizes Early Historic bullion from 1900 - 1960 and 19th Century bullion from the 1800s.
6
I'm a new bullion collector, how do I learn more?
Welcome to the wonderful world of bullion! Visit our Research page to learn more about bullion, the current price of gold, silver, and platinum, and for interesting articles on collecting and storing bullion.
7
How do I submit my bullion to BAC Grading for authentication, grading & encapsulation?
Submissions of bullion can be done through a BAC Authorized Dealer or you can submit directly to BAC Grading by becoming a BAC Stacker Club Member. For instructions to sign-up as a Collector for the Stacker Club click here.
8
What if my bullion is 5 or 10 ounces - can it be put in a holder?
Bullion comes in many shapes and sizes. The BAC Original Holder can hold up to (approximately) a 2 ounce piece of bullion. If an item is too large or small to encapsulate, BAC Grading will provide a Collectible Certificate of Authenticity Card with pictures and pertinent information regarding your bullion. The BAC small holder is in development and will be rolled out at the 2026 FUN Show in Orlando, Florida.