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

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Unique Proof Ike $1
Broadstruck on a 26g Bronze Planchet
NGC PF 61 Cameo
$75,000

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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

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Proof 197X-S Ike Dollar
Double Struck on 2 gram
Aluminum Shell Gas Token
PCGS PR 64
1 of 3 Known
$25,000

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1977 Lincoln Cent
Struck on an Aluminum Planchet
At The U.S. Mint in Philadelphia

1.04 Grams
NGC MS 60
UNIQUE
$350,000

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Proof Ike Dollar
Double Struck on Kennedy Half Dollar Planchet
NGC PF 68 Cameo
$20,000

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Proof 1973-S Kennedy Half Dollar
Double Struck on Washington Quarter
Double Denomination
NGC PF 68 Cameo
UNIQUE
$12,500

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Proof Ike Dollar
Struck on Clad Dime Planchet
PCGS PR 67 Cameo
$15,000

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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

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1974-S Aluminum Lincoln Cent
Struck by the Obverse Die Only
On Philippine 1 Sentimo Planchet
PCGS MS 61
UNIQUE
$40,000

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1904 $20 DOUBLE STRUCK
Rotated 180 Degrees in Collar
NGC MS 62 CAC
BYERS COLLECTION
UNIQUE
$150,000

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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

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1970-S Proof Washington Quarter
Struck on a Silver Barber Quarter
NGC PF 65
1 of 2 Known
$75,000

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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

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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

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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
$12,500

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1869 Standard Silver Half Dollar
J-742b
Without Initial "B" On Ribbon
PCGS PR 64+ CAC
UNIQUE, UNLISTED & UNRECORDED
$35,000

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(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

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World Mint Errors, Die Trials & Patterns



Unique 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
$250,000

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1824 Great Britain Half Sovereign
GOLD Obverse Die Cap
Ex: Eliasberg
NGC MS 64
UNIQUE
$50,000

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(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

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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

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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

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(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

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1845 Great Britain Crown
Young Head Silver Die Trial
Piedfort Pattern
Uniface Obverse
NGC MS 65
UNIQUE, UNLISTED & UNRECORDED
$25,000

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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
$15,000

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(Circa 1806) German States Bavaria
King Maximilian I Joseph (1806-1825)
Historic Gold Service Medal by Losch
6 Ducats   20.96 grams   36mm
Unlisted in Gold
Wittelsbach #2478 (In Silver)
PCGS Specimen 65
(High Relief Cameo Proof-Like)
FINEST KNOWN & EXTREMELY RARE
$25,000

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1880 Great Britain Proof Half Sovereign Pattern
Struck in Silver (Instead of Gold)
MULED with a Sixpence Obverse
KM-PnA118blankWR-354 Var Silver
PCGS PR 64
UNIQUE
$25,000

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Germany Third Reich Matte Proof Set in Silver
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1937A 2 Mark Hindenburg/Swastika
Matte Proof 62 PCGS UNIQUE
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1936A 5 Mark Hindenburg/Swastika
Matte Proof 63 PCGS UNIQUE
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1935A 5 Mark Hindenburg/Eagle
Matte Proof 62 PCGS Two Known
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Unique Set (The Only One In Existence)
$50,000

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Germany Weimar Republic
5 Mark 1932/1 Overdate
Oak Tree
PCGS AU 55
One of Two Known
$10,000

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