Unique & Unusual

By Bullion Shark LLC ......   Modern Proof coins that were struck at the San Francisco Mint, as most Proof coinage has been since 1968, normally...

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 Mike Byers for Mint Error News ......   UNIQUE GOLD QUARTER 1970-S Proof Washington 25¢ Overstruck on 1898 Liberty $5 Gold Coin 8.3 Grams NGC PF 66   This gold Washington...

By Mike Byers ......   A unique gold Buffalo Nickel has been sold by Mike Byers Inc for $400,000 USD to the JDG Trust, owner of...

By Everett Millman - Gainesville Coins .......   Rumors have long circulated in numismatic circles about the mystery of the 1964 Peace dollar, which would have...

By Louis Golino, special to CoinWeek .....   A coin collector and part-time dealer named Adrian Coro, who specializes in circulating Mexican coinage, recently made the...

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...

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...

By Bullion Shark LLC ......   While the 1933 St. Gaudens’ $20 gold coin is widely viewed as the most infamous American coin of all time...

By Bullion Shark LLC ......   Recently, two important and unique United States Mint error coins – a very rare off-center Carson City Morgan silver dollar...

People have been checking their change recently for 1970 Washington quarters - What’s all the fuss about? By Joshua McMorrow-Hernandez for CoinWeek .......   Las Vegas coin...

Double Denomination & Dual Date   By Mike Byers for Mint Error News ......   This is the only known Proof Bicentennial quarter struck over a Roosevelt dime....

Certified by Professional Coin Grading Service, this banknote has mismatched serial numbers and is also missing some serial number digits   Bidding has reached $5,500 for...

By Mike Byers for Mint Error News ......   1973-S Eisenhower Dollar "Blue Ike" Struck on a Clad Planchet 22.3 grams (Should be on a 40% Silver Planchet) PCGS...

Counterfeit Dahlonega Gold by Doug Winter - RareGoldCoins.com ......   CoinWeek Content Partner   As you become a more passionate collector, “oddball” items become more appealing. I refer...

By Mike Byers for Mint Error News ......   1942-S Wartime Lincoln Cent Struck on a Bronze Planchet NGC MS 62 Brown Unique Discovery Coin   This is a fascinating 1942-S...

As one of the largest surviving Roman gold medallions, this piece is one of only two known. circa 308 CE Eight-Aureus Gold Medallion On April 5,...

By CoinWeek .....   One of the things we find most exciting about reporting on the numismatic marketplace is coming across those things we either didn’t...

By Mike Byers for Mint Error News ......   Unique Gold Buffalo Nickel 1913 Type 2 5¢ with Test Cut Struck on a $5 Gold Planchet (8.33 g) NGC...

Judd-2018 is a recently discovered trial striking of the 1922 High Relief Peace dollar, struck in business-strike format and first reported by David W....

The hobo nickel is a sculptural art form involving the creative modification of small-denomination coins, essentially resulting in miniature bas reliefs. The nickel, because...

By Mike Byers for Mint Error News ......   2018-P Roosevelt Dime Struck on a Steel Planchet 98% Iron / 1.5 Grams PCGS MS 60 New Discovery   This is a fascinating...

Unique Dual Mint Mark Discovery   By Mike Byers for Mint Error News ......   Upon closer examination of the understrike on the reverse of the quarter, Jon...

By Mike Byers for Mint Error News ......   1973-S Proof Ike Dollar Mated Pair Ike Dollar Struck on a 1¢ Planchet mated with an Ike Dollar Indented by...

CoinWeek Ancient Coin Series by Mike Markowitz .....   THROUGH A LONG chain of pious frauds and medieval myth-making, the February 14 feast day of St....

 Nationally-known error coin dealer Fred Weinberg always brings amazing error coins with him when he travels the national coin show circuit. At the January 2018...

By Dylan Dominguez and Edward Van Orden for PCGS ......   In the world of numismatics, one often hears the enthusiastically exclaimed, “You never know what's...

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...

By Christopher Bulfinch for CoinWeek .....   Well, CoinWeek's recently-published 1933 Saint-Gaudens $20 double eagle story will need an update now that the New York Times...

CoinWeek Ancient Coin Series by Mike Markowitz ......   IN 2007, CANADA captured a world record by producing five examples of a 100-kilogram gold piece (220.5...