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
$5 1873 Closed 3
Unique Specimen
Experimental Finish
NGC SP 64
$250,000
Unique Proof BRONZE Ike Dollar
Broadstruck on a 26g Bronze Planchet
NGC PF 61 Cameo
$75,000
1972-S Proof Ike Dollar Mated Pair
Ike Dollar Struck on a 1¢ Planchet
mated with an
Ike Dollar Struck on a 10¢ Planchet
NGC Proof 67
AMAZING UNIQUE DISCOVERY
$75,000
Proof 197X-S Ike Dollar
Double Struck on 2 gram
Aluminum Shell Gas Token
PCGS PR 64
1 of 3 Known
$25,000
1977 Lincoln Cent
Struck on an Aluminum Planchet
At The U.S. Mint in Philadelphia
1.04 Grams
NGC MS 60
UNIQUE
$350,000
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
1904 $20
DOUBLE STRUCK
Rotated 180 Degrees in Collar
NGC MS 62 CAC
BYERS COLLECTION
UNIQUE
$150,000
U.S. 1970-S Proof Washington Quarter
Struck on a 1941 Canadian Quarter
TWO COUNTRIES & TWO DATES
NGC PF 65
UNIQUE
FEATURED ON FOX NEWS!
$35,000
1970-S Proof Washington Quarter
Struck on a Silver Barber Quarter
NGC PF 65
1 of 2 Known
$75,000
U.S. 1970-S Proof Washington Quarter
Overstruck on a Canadian Quarter
King George V (1911-1936)
NGC PF 64
UNIQUE DISCOVERY COIN
$25,000
Mexico 1916 Oaxaca Gold 60 Pesos
Struck on a U.S. $10 Liberty (1838-1907)
World-Class Numismatic Rarity
NGC AU 53
UNIQUE
$150,000
1869 Standard Silver Half Dollar
J-742b
Without Initial "B" On Ribbon
PCGS PR 64+ CAC
UNIQUE, UNLISTED & UNRECORDED
$35,000
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
$125,000
1974-S Aluminum Lincoln Cent
Struck by the Obverse Die Only
On Philippine 1 Sentimo Planchet
PCGS MS 61
UNIQUE
$40,000
Proof Ike Dollar
Struck on Clad Dime Planchet
PCGS PR 67 Cameo
$20,000
(2011-2013) U.S. Quarter Test Strike
Judd #2225 - Mint Cancelled
New Martha Washington Die Design
Struck at the U.S. Mint in Philadelphia
NGC Brilliant Uncirculated
UNIQUE (The Only Coin in Private Hands)
$25,000
Proof 1973-S Kennedy Half Dollar
Double Struck on Washington Quarter
Double Denomination
NGC PF 68 Cameo
UNIQUE
$12,500
Proof Ike Dollar
Double Struck on Kennedy Half Dollar Planchet
NGC PF 68 Cameo
$20,000
Unique Dual Mint Mark Discovery
Proof 1776-1976 S Bicentennial Quarter
Overstruck on Struck Lincoln Cent
Double Denomination
Struck by both San Francisco and Denver Mints
NGC PF 67 RD
$20,000
World Mint Errors, Die Trials & Patterns
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
Plate Coins in Forschner
Forschner #34.1 Gold & #34.3 Gold
PCGS MS65 and MS64
1 of Only 2 Known Sets
$100,000
1824 Great Britain Half Sovereign
GOLD Obverse Die Cap
Ex: Eliasberg
NGC MS 64
UNIQUE
$50,000
(1887) Great Britain Queen Victoria
Lauer Victoria Pattern in Gold
Obverse Die Trial - Uniface
World-Class Numismatic Rarity
10.16gr Gold, 27.2mm
Ex. Murdoch Collection (1904)
NGC Medal PF 63 Cameo
UNIQUE
$75,000
1861 German States Bavaria Medal
Prince Adalbert (Brother of King Maximilian II)
Gold Off Metal Strike
"First Test" (Trial Strike)
Hand Engraving from the Bavarian Mint
Presented to the House of Wittelsbach
Pedigreed to Prince Adalbert
UNLISTED IN GOLD AND UNIQUE
World-Class Numismatic Rarity
16 Ducats 54.43 grams 42.59 mm
Hauser-536 (in Tin & Bronze)
PCGS SPECIMEN 62
$100,000
(1904) Belgium Franc
GOLD Obverse Die Trial
1904 Design Overstruck on 1903 Design
Struck on Oversized Piedfort Planchet
(Regular Issue Was Struck in Silver)
NGC MS 61
UNIQUE
$40,000
1985 Canada National Parks Proof $100
Unofficial Platinum Strike Uniface
(Platinum Mint Error or Pattern/Die Trial)
90% Pt, 10% Rh, 16.73 Grams
PCGS PR 67 Deep Cameo
UNIQUE
$75,000
Germany Third Reich Matte Proof Set in Silver
1937A 2 Mark Hindenburg/Swastika
Matte Proof
62 PCGS UNIQUE
1936A 5 Mark Hindenburg/Swastika
Matte Proof
63 PCGS UNIQUE
1935A 5 Mark Hindenburg/Eagle
Matte Proof
62 PCGS Two Known
Unique Set (The Only One In Existence)
$50,000
1911 Great Britain 5 Pound
Uniface Obverse Die Trial
Struck In Lead From PROOF DIE
Width 44.32mm, Thickness 5.69mm
Authenticated by The Royal Mint
Pedigreed To The C.M. Kraay Collection
NGC MS 60
UNIQUE
$25,000
1880 Great Britain Proof Half Sovereign Pattern
Struck in Silver (Instead of Gold)
MULED with a Sixpence Obverse
KM-PnA118
WR-354 Var Silver
PCGS PR 64
UNIQUE
$25,000
1845 Great Britain Crown
Young Head Silver Die Trial
Piedfort Pattern
Uniface Obverse
NGC MS 65
UNIQUE, UNLISTED & UNRECORDED
$25,000
Germany Weimar Republic
5 Mark 1932/1 Overdate
Oak Tree
PCGS AU 55
One of Two Known
$10,000
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