The concept of selective coin collecting accepts that for most collectors, one’s budget, space and ability to understand a collecting area in depth are limited.

A die clash occurs when minimum die clearance drops to zero and the dies collide when a planchet fails to be fed into the striking chamber.

At a June 28 GreatCollections.com sale, a PCGS-graded Specimen 68 Deep Cameo 1966 Kennedy half dollar from a Special Mint set sold for $14,850.

Prior to 1990, Mint marks were hand punched into working dies, sometimes more than once, using a hand-held punch and a mallet.

With a mintage of just 16,000 circulation strikes, the 1880 Shield 5-cent coin is the key to the series.

Uncertainty continues to surround the fate of the Langbord family’s 10 1933 Saint-Gaudens double eagles.

This year’s Summer FUN show, held July 9 to 11 in Orlando, marked the ninth installment, and its U.S. coin auctions by Heritage Auctions brought $8.3 million.

The Coin Dealer Newsletter family of U.S. coin and paper money pricing publications is under new ownership, John Feigenbaum confirms.

Also this week, American Eagle silver bullion coin sales reached 1,323,500 coins in a single day, July 27, after a two-week moratorium on sales.

The United States Mint took orders July 30 for more than 30,000 2015-W American Liberty, High Relief $100 gold coins within 75 minutes.

This year’s Summer FUN show, held July 9 to 11 in Orlando, marked the ninth installment, and its U.S. coin auctions by Heritage Auctions brought $8.3 million.

The most recent big U.S. Mint release was the Harry Truman Coin and Chronicles Set with a Reverse Proof Presidential dollar, which sold out in 15 minutes.

The price of the 2015-W American Liberty, High Relief gold $100 coin when it debuts at noon Eastern Daylight Time July 30 will be $1,490.

When the 2015 Coin and Chronicles Set - John F. Kennedy goes on sale Sept. 15, collectors will have twice as many sets as planned available to purchase.

This year’s Summer FUN show, held July 9 to 11 in Orlando, marked the ninth installment, and its U.S. coin auctions by Heritage Auctions brought $8.3 million.

The Smithsonian's new "Value of Money" exhibit, which officially opened July 15, includes more than 400 objects, thematically grouped in five sections.

When the American Liberty, High Relief coin was just an idea, U.S. Mint technical staff were tasked with determining the viability of striking the coin.

The following was released July 28 by the U.S. Mint concerning the Aug. 24 release of the 2015 American $1 Coin and Currency Set.

Rotational machine doubling is caused by an unstable die rotating around a central axis after the initial impact.

This week I discuss gold $2.50 quarter eagles from 1834 to 1839 — the Classic Head series.

The Guardian reported on the Royal Mint's rising profits in a recent article online. Coin World has that story and more in its latest Buzz report.

Winston Zack, Louis Scuderi and Michael Sherrill announce a new Bust dime book that will be available at ANA.

National Numismatic Collection has grown from Smithson's first 10,000 gold sovereigns, assisted by many donations including several from Stack family.

We like to ask Coin World Facebook fans to share about the numismatic acquisitions they've made recently.

"The Value of Money" exhibit provides a broad view of numismatics, with objects spanning more than 2,600 years.