Errors & Varieties

Official Royal Mint Plaster for the Great Britain 1983 One Pound Official Adopted Design by Eric Sewell (Former Chief Engraver of the Royal Mint) Approved by Queen...

New Martha Washington Die Design (2011-2013) U.S. Quarter Test Strike Judd #2225 - Mint Cancelled NGC Brilliant Uncirculated Unique in Private Hands   By Mike Byers for Mint Error...

Ike Dollar Struck on a 1¢ Planchet mated with an Ike Dollar Struck on a 10¢ Planchet NGC Proof 67 AMAZING UNIQUE DISCOVERY   By Mike Byers for...

By Chris Bulfinch for CoinWeek .....   Heritage Auctions will be selling Bob R. Simpson’s extensive collection of coins beginning on September 17, 2020, in “Important...

By CoinWeek ....   From August 3 through 9, Heritage Auctions held its August 2020 Signature Auction of U.S. Coins. Among the lots on offer were...

Only Known Proof U.S. Kennedy Half Dollar Struck on Any U.S. Coin Double Denomination NGC PF 67 Cameo UNIQUE DISCOVERY COIN   By Mike Byers for Mint Error News...

King George V (1911-1936) Mint Error NGC PF 64 UNIQUE DISCOVERY COIN   By Mike Byers for Mint Error News ......   This unique 1970-S Proof Quarter mint error from...

Mint errors take center stage in Heritage's latest Month-Long Internet Auction. Bidding is open now, with the concluding Live Session scheduled for 6 pm...

Gilt Uniface Reverse Die Trial NGC Proof 65 Ultra Cameo UNIQUE & UNRECORDED   By Mike Byers for Mint Error News ......   This is a unique and unrecorded Proof...

Numismatic Guaranty Corporation® (NGC®) has certified the Beeston Collection, an outstanding set of over 200 British error coins. The coins were recently submitted to...

Proof 1776-1976 S Bicentennial Quarter Double Struck on Struck Roosevelt Dime DOUBLE DENOMINATION PCGS PR 67 CAMEO Unique Discovery Coin   By Mike Byers for Mint Error News ......   This is...

This Unique 1977 Aluminum Cent is either an intentionally made Mint Error on a leftover aluminum planchet from 1974-1975 or a pattern struck in...

By James McCartney – Senior Numismatist, Stack’s Bowers ......   Stack’s Bowers Galleries is thrilled to offer the finest known example of the 1793 Strawberry Leaf...

1932G Germany 5 Mark Reverse Trial Strike in Silver Johann Goethe NGC PF 62 UNIQUE & UNLISTED   By Mike Byers for Mint Error News ......   This is a unique and...

1919 Buffalo Nickel Off-Metal Struck on Argentina 10 Centavos Planchet NGC MS 62 Extremely Rare - 3 Known   By Mike Byers for Mint Error News ......   The United States...

By James McCartney – Senior Numismatist, Stack’s Bowers ......   The Coinage Act of April 2, 1792 authorized the production of three gold denominations at the...

1863 Round Liberty Gold 25¢ California Fractional Gold BG-820 Overstruck on 1860/50 BG-819 NGC MS 61 UNIQUE DISCOVERY COIN   By Mike Byers for Mint Error News ......   This is a...

By CoinWeek ....   On Sunday, July 5, bidding ends on GreatCollections.com for this 1882-O/S Strong overstrike Morgan silver dollar, graded MS-65 by PCGS. It is...

First major variety discovery of that Early Half Dollar date in nearly a century   Professional Coin Grading Service (PCGS) has confirmed a new die marriage...

The modern Chinese Peacock series of coins is always popular with collectors. But despite these coins' popularity and beauty, you can usually purchase a...

The Stack’s Bowers Galleries June 2020 Auction continued the trend of exceptional prices realized recently demonstrated in their March Santa Ana and May Hong...

Also Features a 70% Reverse Indent by a QUARTER Planchet   By Mike Byers for Mint Error News ......   All Ike dollar off-metals are highly prized by...

By Doug Winter - RareGoldCoins.com ...... CoinWeek Content Partner   In a recent (April 2020) Heritage Auction, I purchased a very interesting 1840-O Narrow Mill half...

Struck in Gilt Copper - Uniface - UNIQUE & UNLISTED NEW DISCOVERY   By Mike Byers for Mint Error News ......   This is a unique and spectacular...

The Only 1974-S Aluminum Cent That Can Be Privately Owned   By Mike Byers for Mint Error News ...... The 1974 aluminum cent is world famous. Proposed in...

Recently Surfaced After 200 Years   By Mike Byers for Mint Error News ...... W&R-182 Copper NGC MS62BN Although this unique pattern Guinea/Sovereign is listed in the...

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)   By Mike...

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...

Numismatic Guaranty Corporation® (NGC®) is now attributing Proof Franklin half dollars and Proof Kennedy half dollars according to the die varieties cataloged by Rick...

By Joshua McMorrow-Hernandez for PCGS ......   The mid-1960s was a colorful time in American numismatics, with the United States Mint making a series of changes...