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Welcome to the website of Byers Numismatic Corp. (mikebyers.com)

We are one of the largest Numismatic corporations dealing in U.S. Gold Coins, Patterns and Rarities certified by PCGS and NGC. Our premier inventory includes only the best, museum quality, world class U.S. and World rarities. Many of our purchases are immediately sold to our customers and are never offered on our website or eBay. Visit our Consignment Showcase and our Inventory on our website. Send us your want list, we may have just what you're looking for.
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Buying and Selling


  • RARE U.S. GOLD COINS
    • Certified by PCGS or NGC
    • Pre-1840 Gold Coins In All Denominations
    • Proof, Mint State & Specimen
    • All Grades From MS 64 To MS 68
    • Coins Priced From $50,000 To $1,000,000
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  • U.S. PATTERNS & DIE TRIALS
    • Certified by PCGS or NGC
    • Struck in Gold or Off-Metals of Gold Denominations
    • Most Judd #'s That Are R-7, R-8 or Unique
    • All Grades From Proof 64 To Proof 68
    • Coins Priced From $50,000 To $1,000,000
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  • U.S. MINT ERRORS
    • Certified By PCGS or NGC
    • Gold & Rare Silver Type Errors
    • Mint State & Proof 62 To 68
    • Early Type (Pre-1950) From $25,000 To $500,000
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Mike Byers is president of Byers Numismatic Corp., a California corporation dealing in numismatics. He is one of the largest dealers handling U.S. Gold Coins, Patterns and Rarities certified by PCGS and NGC. He has been a professional numismatist for over thirty years, has handled major coin collections and attends every major coin convention. Byers Numismatic Corp. carries an extensive inventory as well as solicits want lists and is always looking to purchase fresh inventory and collections.

Mike Byers was a consultant to ANACS for Mint Errors from 2000 to 2006. He is the Editor and one of the Sponsors for minterrornews.com. He is also the Publisher and Editor of Mint Error News Magazine. In 2009, Mike Byers published his first book, World's Greatest Mint Errors, which received the NLG Award for Best World Coin Book and is available on Amazon.com.

Mike Byers is a life member of ANA since 1985, a charter member of NGC and a featured dealer/member of PCGS. He is a founder member of the California Coin & Precious Metals Association. He is also a life member of the Central States Numismatic Society, the Florida United Numismatists and a member of ICTA. He is member A71 in the Certified Coin Exchange (CCE) and a member of CoinPlex (BYRS).

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Book & Award
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The Byers Collection

NGC began certifying a few major mint errors from Mike Byers' personal collection. These spectacular and rare coins each have "BYERS COLLECTION" designated on the NGC insert.


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1904 $20 Double Struck
Rotated 180 Deg in Collar
NGC MS 62 CAC
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(1928) 25¢ Struck on a
1¢ Planchet 3.02 Grams
NGC MS 63 BN
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