MIKE BYERS INC
mike@mikebyers.com
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714.914.6415
INVENTORY
View sold Mint Errors in our Archives
U.S. 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
1904 $20
DOUBLE STRUCK
Rotated 180 Degrees in Collar
NGC MS 62 CAC
BYERS COLLECTION
1 of 4 Known
$150,000
1976-S Proof Bicentennial Eisenhower Dollar
Double Struck
Second Strike Off-Center
NGC PF 64⭑
UNIQUE
$100,000
1971-S Proof Silver Eisenhower Dollar
Double Struck
Both Strikes Off-Center
NGC PF 68 ULTRA CAMEO
Extremely Rare
$60,000
1921 Peace Dollar Splasher
Judd A1921-1
PCGS UNC Detail
UNIQUE
$40,000
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
1977 Lincoln Cent
Struck on an Aluminum Planchet
At The U.S. Mint in Philadelphia
1.04 Grams
NGC MS 60
UNIQUE
$500,000
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
1852 Judd #138 Gold $1
On a Cut-Down
Gold Plated
Seated 10C
NGC PF 64 (CAC Approved)
UNIQUE
$60,000
Mated Pair of Proof Ike Dollars
Struck Off-Center on 1¢ Planchets
NGC Proof 67 RB & Proof 66 RB
UNIQUE
$60,000
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
1973-S Proof Kennedy Half
Struck In (1.6g) Copper Planchet on Obverse
(Bonded Pair)
NGC PF 67
UNIQUE
$40,000
Martha Washington Obverse Die
Used to Strike Half Dollar Experimental
Test Pieces for U.S. Judd #2131
NGC Certified & Encapsulated
ONLY 2 KNOWN IN PRIVATE HANDS
$75,000
1971-S Proof Ike Dollar
Overstruck on a Bronze
San Francisco Assay Office Medal
(17.1g)
NGC PF 69 RED CAMEO
UNIQUE
$100,000
Ike Dollar
Struck on 1¢ Planchet (3.14g)
NGC PF 66 RED
$25,000
Proof 197X-S Ike Dollar
Double Struck on 2 gram
Aluminum Shell Gas Token
PCGS PR 64
2 Known
$50,000
1974-S Lincoln Cent Mated Pair
Struck by 2 U.S. Cent Obverse Dies
Coin #1 On 1973 Panama Tenth Balboa
Coin #2 Reverse Brockage
NGC MS 66 & MS 64 BN
UNIQUE DISCOVERY
$150,000
Ike Dollar
Struck 35% Off-Center
On Taiwan $1 Planchet
PCGS MS 64
UNIQUE
$15,000
1976-S Proof Bicentennial Silver Eisenhower Dollar
Struck On Outer Clad Layer
NGC
UNIQUE
$10,000
1907 $20 Liberty Gold
DOUBLE STRUCK
Second Strike Partial Collar
NGC MS 62
1 of Only 4 Known
$40,000
Proof Eisenhower Dollar Mated Pair
1973-S Clad Ike Dollar Struck Thru Silver Layer
NGC PR 65
UNIQUE
$40,000
Proof Clad Eisenhower Dollar
Double Struck
Both Strikes Off-Center
NGC PF 66 CAMEO
Extremely Rare
$35,000
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