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Mint Error Coin
Inventory












Check Out Mike Byers'
1975 Mint Error Catalog


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1853 U.S. Assay Office of Gold $20
Double Struck
NGC AU 55



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1864 2¢ Obverse Die Cap
Mated With Brockage
PCGS MS 62



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1856 Large Cent Cap
PCGS MS 64 BN



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1904 $20 Liberty Gold
Double Struck
ANACS MS 60 Proof-Like



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1921-S Morgan Dollar
Struck 45% Off-Center
NGC MS 63



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1865 $1 Indian Gold Proof
Triple Struck Reverse
PCGS PR 64 Cameo



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1887 $3 Indian Gold Proof
Triple Struck
PCGS PR 63 Cameo



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Unique Indian Cent
Struck on Half Dime Planchet
PCGS MS 63



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Franklin Half Dollar
Struck on a 1948 Lincoln Cent
NGC MS 64 BN



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1873 $20 Closed 3 J-1344 R-7
Double Struck Rotated in Collar
NGC PF 61 RB



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1865 2¢ Deep Obverse Die Cap
Brockage Reverse
PCGS MS 64 RB



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1851 3¢ Obverse & Reverse
Die Trials on Cardboard
Judd 9th Ed. Plate Coin JA1851-1



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1901/0-S $5 Liberty Gold
Struck 10% Off-Center
PCGS AU 55



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1945-S Walking Liberty Half On
El Salvador 25 Centavo Planchet
NGC MS 63



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1910 Lincoln Cent
Uniface Test Strike
PCGS AU 58



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1875-CC $20 Liberty Gold
Partial Collar
NGC MS 62



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1920 Buffalo Nickel
Struck on Copper Planchet
NGC AU 55



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1869 Indian Cent
Struck on Silver Dime Planchet
PCGS AU 55



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1906-D $20 Liberty Gold
Broadstruck
NGC AU 58



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1818/5 Cap Bust Quarter
Struck 5% Off-Center
NGC MS 65



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Ike Dollar Double Struck
on a Dime Planchet
PCGS MS 64



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1872 $20 Liberty Head Type II
Unique Obverse Die



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1843-C $2½
Partial Brockage
PCGS AU 58



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1871 3¢ Nickel
Struck on 1¢ Stock
NGC MS 62 BN



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Canadian "Two Tailed" Cent
PCGS MS 64 RD



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1988 $5 Federal Reserve Note
Unique Double Denomination Error



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1864 Large Date 2¢
Struck on 1¢ Planchet 3.0 gr
NGC AU 58 BN



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1910 $2½ Indian Gold
Struck 5% Off-Center
NGC MS 65



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1893-O $10 Liberty Gold
Broadstruck out of the Collar
PCGS AU 58



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1866 Shield Nickel with RAYS
Struck on Indian Cent Planchet
PCGS XF 45



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Unique 2000-P MA Quarter
Struck on Experimental Planchet
PCGS MS 65



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Mint Error News Magazine
Issue 23 Now Online

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Coming Soon:




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error coins to
mikebyers.com


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The fascinating aspect of this unique set of Paraguay overstrikes is the fact that the dies used were unfinished pattern dies which had incomplete dates and that these four patterns were struck over struck gold coins. These gold coins were from Paraguay, Chile and Argentina and are on different denominations with different dates. Several of the gold coins that were overstruck are either rare dates or rare types and were in spectacular condition when they were hand selected. There is no doubt that this was a presentation set that was struck in the Mint and preserved to this day in mint state condition. This set is one of the most historic, dramatic and unusual numismatic rarities ever struck by an official Mint.

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Mike Byers is the Publisher & Editor
Of Mint Error News Magazine


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Issue 23

Issue 22

Issue 21

Issue 20

Issue 19

2007 Special Edition

Issue 18

Issue 17

Issue 16

Issue 15

Issue 14

2006 Special Edition

Issue 13

Issue 12

Issue 11

Issue 10

Issue 9

Issue 8

Issue 7

Issue 6

Issue 5

Issue 4

Issue 3

Issue 2

Issue 1


Type Errors
(Pre 1900)
Type Errors
(Post 1900)
States Quarter
Errors
Kennedy Half
Errors
IKE Dollar
Errors
SBA Dollar
Errors
Sacagawea Dollar
Errors
U.S. Gold
Errors
Proof Errors All Other
U.S. Errors
U.S. Patterns
and Die Trials
World Patterns
and Die Trials
Ancient Errors World Gold
Errors
World Silver
Errors
All Other
World Errors
Other Rarities Currency Errors






  • MAJOR U.S. MINT ERROR COINS

    • PCGS, NGC, ICG & ANACS Certified Mint Errors
    • Also Major U.S. Mint Errors Not Certified
    • U.S. 1¢ thru $50 Mint Errors
    • 19th and 20th Century Type Mint Error Coins:
      All Denominations
    • All U.S. Territorial Gold Mint Errors
    • Modern Mint Errors: State Quarters, Kennedy Halves,
      IKE Dollars, SBA Dollars and Sacagawea Dollars
    • Major and Dramatic Errors From $5,000 To $200,000
    • Die Trials, Hub Trials, Splashers, Uniface & Off-Metal Strikes
    • All Pattern Errors & Martha Washington Die Trials

  • WORLD GOLD & SILVER MINT ERROR COINS

    • PCGS, NGC, ICG & ANACS Certified Mint Errors
    • Mint Errors Of All Denominations: Especially English, Canadian & All Countries In The European Monetary Union (Euros)
    • Major and Dramatic Errors From $3,000 To $100,000
    • World Die Trials, Splashers, Uniface & Off-Metal Strikes

  • U.S. CURRENCY ERRORS

    • All Specimen Notes
    • Especially Errors on $2, $50, $100, $500 Notes & Large Size
      Note Errors
    • Dramatic and Unique Printing & Cutting Errors From $3,000 To $50,000
    • Double Denominations, Multiple Impressions & Multiple Errors





This is a unique set of nineteenth century Paraguay patterns that were overstruck on previously struck gold coins. NGC recently certified another set which was published for the first time as a Mint Error News Magazine cover story. This set is one of the most historic, dramatic and unusual numismatic rarities struck by an official Mint.

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