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Feeder Mechanisms and Feeder Mechanism Die Damage Patterns, 2018 to Present

By Pete Apple Why This Study Still Matters Studying feeder mechanism die damage patterns from the early 20th century to the present creates real challenges. Researchers...

Feeder Mechanism Die Damage Patterns (1990–2018): A Diagnostic Guide for Collectors

By Pete Apple The Hidden Story Behind Die Damage Modern coin presses operate at remarkable speed. They strike coins with precision measured in fractions of a...

The Case of the Missing Master Hub

By Pete Apple Something vanished from the United States Mint sometime between 2008 and 2022. No announcement followed. Even more striking, no one seems to...

Feeder Mechanisms and Die Damage Patterns (1945-1990)

By Pete Apple Feeder mechanism damage remains one of the more challenging areas of modern mint-error attribution. Researchers must work with incomplete documentation about coining...

Feeder Mechanisms and Die Damage Patterns (1896–1945)

By Pete Apple Understanding feeder-mechanism die damage patterns from the late 19th through the mid-20th centuries is complicated by two key factors: incomplete technical documentation...

Certificates of Authenticity for Retired U.S. Mint Dies: What the Records Reveal

Since at least 1995, the United States Mint has operated a program that sells retired and defaced coinage dies to the public. Each die...

Radiating Lines On Coins Have More Than One Cause

The presence of radiating lines on a coin is an indication that something was wrong with the die, the planchet, or the strike. Often,...

Bifacial Collar Clash Seldom Encountered

Collar clash is a phenomenon that, until relatively recent times, was almost wholly restricted to the hammer die. A typical collar clash occurs when a...

Previously Known 1943-S Lincoln Cent Doubled Die Cent Discovered to Be Overdate

By Tom DeLorey ...... About 45 years ago, collector Del Romines came into my office at Coin World’s "Collectors Clearinghouse" with two well-worn 1943-P nickels...

Running Antelope and the 1899 $5 Silver Certificate

Original Article By Christopher Bulfinch, Updated and Reformatted by CoinWeek (Editor’s note: This article discusses and depicts historical language and imagery that some collectors may...

1792 Half Disme : A Collector’s Guide

By Charles Morgan and Hubert Walker for CoinWeek Notes ..... Early Attempts at a National Coinage Unsuccessful The Coinage Act of 1792 established the United States...

2008-P Martin Van Buren Presidential $1 Coin : A Collector’s Guide

By Charles Morgan and Hubert Walker for CoinWeek Notes .... The 2008-P Martin Van Buren Presidential Dollar is a one-dollar coin struck at the Philadelphia Mint...

Stack’s Bowers Presents “Money Talks” With David Meltzer

Stack's Bowers Galleries announces its latest venture, a show titled "Money Talks". Presented by Stack's Bowers and hosted by legendary sports executive, entrepreneur, and...

Jeff Garrett: The Rare Coin Business 2.0

New technologies are changing the rare coin market and how numismatic companies do business   By Jeff Garrett for NGC (Numismatic Guaranty Corporation) ...... The rare coin...

A Massive Coin for a Massive Empire: The Russian 5 Kopek Copper

The Imperial Russian 5 Kopek certainly has a heft befitting such an imposing country. But why strike such large copper coins?   By Tyler Rossi for...

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