INVENTORY


View our rare coin inventory below.
New listings are first, then U.S. and World.
Click here for our Terms of Sale    |    Click here for our Archives



New Listings


Proof 1976-S Bicentennial Quarter
Overstruck on 1967 Roosevelt Dime
Double Denomination & Dual Date
NGC PF 67
UNIQUE
$35,000

slabblankslab


1973-S Proof Clad Ike Dollar
Double Struck
Second Strike Broadstruck
NGC PF 69 Cameo
Extremely Rare
$10,000

slabblankslab


Unique Gold Obverse Trial Strikes
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
$150,000

slabblankslab


2008 China 500 Yuan
One Ounce Gold Panda
Partial Collar
NGC MS 69
UNIQUE
$8,500

slabblankslab


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

slabblankslab


1945-S Walking Liberty Half Dollar
Double Struck
Second Strike 55% Off Center
PCGS MS 63
Finest Known
$65,000

slabblankslab


Proof 1976-S Jefferson Nickel
Bicentennial Year
Obverse Cud (Die Break)
Just Discovered
Extremely Rare
NGC PF 69 Ultra Cameo
$2,500

slabblankslab


Proof 1976-S Jefferson Nickel
Bicentennial Year
Obverse Cud (Die Break)
Just Discovered
Extremely Rare
NGC PF 68 Ultra Cameo
$2,250

slabblankslab


Proof 1976-S Jefferson Nickel
Bicentennial Year
Obverse Cud (Die Break)
Just Discovered
Extremely Rare
NGC PF 67 Ultra Cameo
$2,000

slabblankslab




U.S. Mint Errors, Die Trials & Patterns



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

slabblankslab


1970-S Proof Washington Quarter
Struck on 1941 Canada Quarter
NGC PF 65
UNIQUE (The Only Coin In Existence)
FEATURED ON FOX NEWS!
$35,000

slabblankslab


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

slabblankslab


1870 Standard Silver 10¢ Judd #837
Broadstruck on a Copper Nickel (CN) Planchet
(Instead of a Silver Planchet)
76% Cu, 24% Ni, .99 Grams
Proof Pattern Off-Metal Mint Error
PCGS PR 65
UNIQUE
$20,000

slabblankslab


1928 Standing Liberty Quarter
Struck On A Cent Planchet
NGC MS 63 BN
From The Byers Collection
$60,000

slabblankslab


Mexico 1916 Oaxaca Gold 60 Pesos
Struck on a U.S. $10 Liberty
NGC AU 53
UNIQUE
$100,000

slabblankslab


1922-S Peace Dollar
Struck 15% Off Center
PCGS MS 65
Finest Known
$75,000

slabblankslab


Unique 1943 Lincoln Cent 5-Piece Set
Including An Experimental Antimony Test Piece
And An Experimental 1943 Copper Blank and Zinc Test Blanks
NGC
$100,000

slabblankslab


1900 Indian Head Cent
Multi-Struck 20% Off-Center
On A Silver Dime Planchet
NGC MS 66
UNIQUE
$60,000

slabblankslab


U.S. Mercury Dime Dies
From The Philadelphia Mint
1935 Obverse and Reverse Pair
NGC Certified & Encapsulated
BOTH ARE UNIQUE IN PRIVATE HANDS
$25,000

slabblankslab

dieblankdie


1882 Shield Nickel
Struck On A Cent Planchet
3.0 Grams
Finest Known
NGC MS 65 BN
$35,000

slabblankslab


1981 Lincoln Cent
Struck 70% Off-Center
On A 1979 SBA Dollar
PCGS MS 62
UNIQUE
$35,000

slabblankslab


2000 Lincoln Cent
Struck Onto 2000-P Sacagawea Dollar
PCGS MS 63
Extremely Rare
$35,000

slabblankslab


2000 Lincoln Cent
Struck Onto 2000-P New Hampshire Quarter
PCGS MS 65
Extremely Rare
$17,500

slabblankslab


2001-P Sacagawea Dollar
Struck On A 5¢ Planchet
PCGS MS 64
3 Known
$30,000

slabblankslab


(1864-66) Julian-PR-30, AV 19mm
Washington - Lincoln
NGC MS 66 DPL
$15,000

slabblankobv


Undated Julian-PR-41, AV 19mm
Lincoln - Garfield
NGC MS 64 DPL
$15,000

slabblankobv


Undated Julian-PR-40, AV 25mm
Lincoln - Garfield
NGC PF 63 Ultra Cameo
$15,000

slabblankobv


(2011-2013) U.S. Quarter Test Strike
Judd #2225 - Mint Cancelled
New Martha Washington Die Design
NGC Brilliant Uncirculated
UNIQUE (The Only Coin in Private Hands)
$10,000

slabblankslab


U.S. 25¢ Stainless Steel Feeder Finger
From The Denver Mint Grabener Press
Authenticated and Encapsulated by NGC
UNIQUE (Not Struck by Coin Dies)
$7,500

slabblankslab


Rare Set of Elliptical Nickels
blank
1916 Buffalo Nickel
ex-Fred Weinberg Collection
PCGS MS 62blank1 of 2 Known
blank
1906 Liberty Nickel
PCGS XF 45blankUNIQUE
blank
$5,000 For The Pair

slabblankslab


1943 Lincoln Cent 4-Piece Set
Experimental Zinc Test Blanks
Struck in February 1943 as Noted on the Insert
NGC
$3,000

slabblankslabblankslabblankslab




World Mint Errors, Die Trials & Patterns



(1887) Great Britain Queen Victoria
Lauer Victoria Pattern in Gold
Obverse Die Trial - Uniface
10.16gr Gold, 27.2mm
Ex. Murdoch Collection (1904)
NGC Medal PF 63 Cameo
UNIQUE
$75,000

slabblankslab


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
$50,000

slabblankslab


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

slabblankslab


1985 Proof $100 Canada
National Parks Commemorative Gold Coin
Mated Pair of Die Caps
PCGS PR 69 DCAM & PR 67 DCAM
UNIQUE (The Only Die Caps In Existence)
$100,000

slabblankslab


1845 Great Britain Crown
Young Head Silver Die Trial
Piedfort Pattern
Uniface Obverse
NGC MS 65
UNIQUE, UNLISTED & UNRECORDED
$50,000

slabblankslab


1824 Great Britain Half Sovereign
GOLD Obverse Die Cap
Ex: Eliasberg
NGC MS 64
UNIQUE
$40,000

slabblankslab


Proof 1992 Canada $15
Struck on $50 Gold Planchet
DISCOVERY COIN
NGC PF 68 Ultra Cameo
Extremely Rare
$20,000

slab


Proof 1992 Canada $15
Struck on $50 Gold Planchet
NGC PF 67 Ultra Cameo
Extremely Rare
$20,000

slab


(1904) Belgium Franc
GOLD Obverse Die Trial
1904 Design Overstruck on 1903 Design
(Regular Issue Was Struck in Silver)
NGC MS 61
UNIQUE
$30,000

slabspaceslab


Germany Third Reich Matte Proof Set in Silver
blank
1937A 2 Mark Hindenburg/Swastika
Matte Proof 62 PCGS UNIQUE
blank
1936A 5 Mark Hindenburg/Swastika
Matte Proof 63 PCGS UNIQUE
blank
1935A 5 Mark Hindenburg/Eagle
Matte Proof 62 PCGS 3 Known
blank
Unique Set (The Only One In Existence)
$50,000

slabblankslabblankslab
blank
slabblankslabblankslab


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

slabblankslab


1980 Canada Cent
Struck with Two Reverse Dies
PCGS MS 64 Red
1 of 2 Known
Featured on the Front Page of Coin World
$20,000

slab


1842 Argentina 8 Escudos
Obverse Die Trial in Silver
(Regular Gold Issue ONLY 5 KNOWN)
Struck at the La Rioja Mint
NGC AU 58
UNIQUE
$20,000

slabblankrev


1970 Canada 50-Cent
Struck on 12.1 Gram Gold Planchet
PCGS MS 64
1 of 2 Known
$30,000

slabblankslab


1969 Canada 25-Cent
Struck on 1963 Great Britain Gold Sovereign
Double Denomination
PCGS MS 64
1 of 2 Known
$40,000

slabblankslab


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

slabblankobv


1986 Canada ½ oz Maple Leaf $20
Brass Uniface Die Trials
(Obverse and Reverse)
PCGS Specimen 66 & Specimen 67
UNIQUE PAIR
$7,500

slabblankslab


"Two-Tailed" Off-Metal 10 Cent Euro
Struck With Two Reverse Dies
On Chrome Plated Iron Planchet
NGC MS 65
Two Known
$5,000

slabblankslab


1831 Great Britain 1/2 Sovereign
Reverse Pattern
Gilt Uniface Reverse
NGC Proof 65 Ultra Cameo
UNIQUE & UNRECORDED
$10,000

slabblankslab


(1816) Great Britain Guinea/Sovereign Pattern
W&R-182 Copper
NGC MS62BN
UNIQUE
Recently Surfaced After 200 Years!
$10,000

slabblankslab


1827 German Baden-Durlach 5 Gulden
Specimen Striking In Copper
Ex Ernst Otto Horn Collection
PCGS SP 66 RB
UNIQUE & UNLISTED
$3,000

slabspaceslab


1899 Belgium 50 Centimes
1899 Reverse Muled with a 1907 Obverse
Bogaert-1306-B1
NGC MS 63
Two Known
$2,500

SlabblankSlab


1711 Germany Taler
Hesse-Cassel HOF-6275
Death of Maria Amalia
Struck in Lead
Ex-Cassel Collection
NGC AU 55
UNIQUE
$7,500

slabspaceslab


Set of German Proof Zinc Off-Metals
Wurttemberg 1914 2 Mark NGC PF 62
Wurttemberg 1914 3 Mark NGC PF 61
Unlisted in Schaaf, Beckenbauer and KM
UNIQUE (The Only Known Set)
$7,500

slabspaceslab


Great Britain Trial Strike
For Queen Elizabeth II Crown
Royal Mint (1957)
CuNi 38.5mm
Struck with 2 Obverse Dies
PCGS MS 62
UNIQUE
$7,500

slabblankslab


5 Denomination Canada Reverse Die Trials
For The Gold Maple Leaf Series
Struck in Brass and Gold Plated
Issued by the Royal Canadian Mint
10 Known Sets in Lucite
$7,500

lucite


1972-NI Ethiopia 10 Dollar Patterns
Pair of Silvered Bronze Specimens
Uniface Die Trials
PCGS SP 63
Only 2 Sets Known
$3,500

SlabblankSlab


1990 Mexico Proof Pattern Overstrikes
On 1980 1 Onza Libertad Silver Bullion Coinage
PCGS PR 68
On 2008 1 Onza Libertad Silver Bullion Coinage
PCGS PR 67
EXTREMELY RARE
$3,000

slabblankslab


Click here for our Terms of Sale     |     Click here for our Archives

Rare Coin Inventory  |  About  |  Contact  |  News
Collector's Info  |  Glossary  |  Calendar  |  Home
Mike Byers Fine Art eBay
World's Greatest Mint Errors Mint Error News
MIKE BYERS INC
8545 W. Warm Springs Rd, Ste A-4 #340, Las Vegas, NV 89113 mike@mikebyers.com   |   714.914.6415
Copyright © 1998-2020 Mike Byers Inc. All rights reserved. Website by Sam Rhazi Web Design. Legal Notice