MIKE BYERS INC
mike@mikebyers.com
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INVENTORY
View sold Mint Errors in our Archives
Mint Errors, Die Trials & Patterns
Proof 1891-O Seated Liberty Dime
Unique Branch Mint Proof
Listed in the
2024 Red Book 9
th
Edition
NGC PF 66
$350,000
UNIQUE SPECIMEN:
$5 1873 Closed 3
Experimental Finish
NGC SP 64
$400,000
1977 Lincoln Cent
Struck on an Aluminum Planchet
At The U.S. Mint in Philadelphia
1.04 Grams
NGC MS 60
Ex Fred Weinberg Collection
UNIQUE
$500,000
1904 $20
DOUBLE STRUCK
Rotated 180 Degrees in Collar
NGC MS 62 CAC
BYERS COLLECTION
1 of 4 Known
$150,000
1855-O Type 2 Gold Dollar
Double Struck
Second Strike Off-Center
NGC AU Details (Damaged)
UNIQUE
$40,000
1974 Canada $5 Olympic Commemorative
Off-Metal Mint Error
Struck on Experimental Silver Planchet
Intended for Uniface Essay Trial Strikes
PCGS MS 64
UNIQUE
$25,000
1977 Canada Silver Jubilee $100
Struck on 8.1 gram 50c Planchet
(Regular Issue Struck In Gold)
PCGS PR 67 Deep Cameo
UNIQUE
$35,000
Kennedy Half Dollar
Struck on a Copper-Zinc Planchet
83% Cu, 17% Zn
Weight 2.4 grams
Likely Struck on an Experimental Cent Planchet
NGC MS 64 RB
UNIQUE
$25,000
1921 Peace Dollar Plaster
Designed & Sculpted by Anthony de Francisci
UNIQUE in Private Hands
$60,000
1921 Peace Dollar Splasher
Judd A1921-1
High Relief
PCGS UNC Detail
UNIQUE
$60,000
1973-S Proof BRONZE Eisenhower Dollar
Broadstruck on Bronze Planchet
PCGS PR 62 RED CAMEO
(Previously NGC PF 61 CAMEO)
BYERS-FROHMAN
UNIQUE
$100,000
Gold Obverse Trial Strikes
World-Class Numismatic Rarity
Matthias II - Holy Roman Emperor
c.1612 Gold Coronation Medals
Matthias II and Anna
German States - Frankfurt am Main
Listed & Illustrated in Forschner
PCGS MS65 and MS64
1 of Only 2 Known Sets
$100,000
Charles A. Lindbergh
14-Inch Obverse Bronze Galvano
For The 1928 Congressional Gold Medal
Designed and Sculpted by Laura Gardin Fraser
UNIQUE in Private Hands
$50,000
Charles A. Lindbergh
14-Inch Plaster Model of the Reverse
For The 1928 Congressional Gold Medal
Designed and Sculpted by Laura Gardin Fraser
$35,000
1932 Washington Quarter Reverse Plaster Model
Designed and Sculpted by Laura Gardin Fraser
Plaster & Original Photograph from her Estate
Adopted Reverse Design for the 1999 $5 Gold
George Washington Commemorative
UNIQUE 11½" Plaster Model
$40,000
Jefferson Nickel Die Trial
Reverse Electrotrial
by Anthony De Francisci
Judd #JC1938-1
PCGS MS 62
UNIQUE
$40,000
1907 $20 Liberty Gold
DOUBLE STRUCK
Second Strike Partial Collar
NGC MS 62
1 of Only 4 Known
$25,000
Martha Washington Reverse Die
Used to Strike 1 Cent Experimental
Test Pieces for U.S. Judd #2180
NGC Certified & Encapsulated
UNIQUE in Private Hands
$75,000
Martha Washington Obverse Die
Used to Strike Half Dollar Experimental
Test Pieces for U.S. Judd #2131
NGC Certified & Encapsulated
1 of Only 2 Known In Private Hands
$75,000
1970-S United States Proof Washington Quarter
Overstruck on a
1941 Canadian George VI Silver Proof Quarter
PCGS PROOF 66 (
previously NGC PF 65
)
UNIQUE
$40,000
1976-S Proof Bicentennial Eisenhower Dollar
Double Struck
Second Strike Off-Center
NGC PF 64⭑
UNIQUE
$100,000
1976-S Proof Bicentennial Silver Eisenhower Dollar
Struck On Outer Clad Layer
NGC
UNIQUE
$15,000
1971-S Proof Eisenhower Dollar
Overstruck on a Bronze
San Francisco Assay Office Medal
(17.1g)
NGC PF 69 RED CAMEO
UNIQUE
$100,000
1973 Canadian Commemorative Quarter
Overstruck by 1978 Canadian Cent Dies
PCGS MS 63
UNIQUE
$10,000
1944 Lincoln Cent - Wheat Reverse
Obverse Mirror Brockage
One of Only Two Known
CAC®
Rare Coin Market Review
Cover Coin
CACG AU50BN
$12,500
1942-S Wartime Lincoln Cent
Struck on a Bronze Planchet
95% Cu - 4% Zn - 1% Sn
2.5 Grams
NGC MS 62 Brown
UNIQUE DISCOVERY COIN
$35,000
1999 Lincoln Cent
Overstruck on 1996 Lincoln Cent
Dual Date on the Same Denomination
3 Years Apart!
PCGS MS 63 RB
UNIQUE
$8,500
1943 Lincoln Steel Cent
Split Before Strike (1.42 Grams)
Uniface Obverse
PCGS MS 62
UNIQUE
$5,000
Unique Plaster Model and Galvano
Unadopted Design by Heinz Rodewald
For the 1986 German 5 Mark
Frederick the Great Commemorative
$2,500
1969 Hungary Gold 50 Pengő
Double Struck with Rotation on Reverse
1000
th
Anniversary of Saint Stephen
Extremely Low Mintage of Only 100 Struck
NGC MS 66 Deep Prooflike
UNIQUE
$8,500
'1834' Belgium 40 Franc
Unique Obverse Hub Trial Strike
King Leopold I
White Metal Restrike
Pedigreed to the Brussels Mint in Belgium
PCGS MS 62
$7,500
1876 Germany 1 Mark
Obverse Indented by a 20 Pfennig Planchet
NGC MS 63
UNIQUE
$5,000
Spain 1857 Gold 100 Reales
7-Pointed Star - Seville Mint
Flipover Double Struck, Partial Collar
PCGS MS 65
UNIQUE
$12,500
2008-P Andrew Jackson Presidential Dollar
Doubled Edge Lettering
PCGS MS 65
UNIQUE
$4,000
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