New California fractional gold varieties are seldom identified, with a new discovery made only once every four or five years.

What did I learn in 90 minutes of slab surgery? Plastic encapsulations are strong, power tools are stronger, and watch your fingers!

A number of President Obama's nominations, including that of Matthew Rhett Jeppson as U.S. Mint director, continue to await a full Senate vote.

Identifying when in the minting process damage is inflicted is important for diagnosis and valuing. Damage that occurs after the strike generally has no value.

Joe Hosteen Kellwood served in the First Marine Division in the Pacific Theater of World War II, experiencing combat in Cape Gloucester, Peleleiu and Okinawa.

The summer doldrums for the rare coin market broke in a big way with the auctions of the final Long Beach Expo of 2016.

From 2018 to 2020, the obverse designs will change each year, instead of the reverse, which has been the side traditionally bearing the changing themes.

Trade dollars remain an outlier among U.S. coins, in that the large silver coins were never intended to circulate in the United States.

Part of the grading milieu is the mutually profitable system of resubmitting a coin to a certification service and having it returned with a higher grade.

Also this week, a judge announced who has rights to the SS Central America treasure, and a truck carrying millions of copper planchets spilled its cargo.

A 1942 Walking Liberty half dollar struck on a planchet intended for a quarter and sold during the 2016 ANA convention is one of perhaps five known.

The Proof American Eagle platinum $100 coin is getting a makeover, and the obverse and reverse designs that are being considered have been made public.

John Mercanti's Statue of Liberty-themed design for the obverse of the platinum Proof and bullion American Eagles since 1997 will disappear in 2018.

Production of the final 1916 centennial coin of 2016 is underway and Coin World has exclusive images of one of the early strikes.

The manganese-bronze clad Sacagawea dollar replaced the copper-nickel clad Anthony dollar in 2000. This planchet error bridges the two issues.

A truck hauling millions of copper-plated zinc planchets bound for the Philadelphia Mint struck a concrete median barrier on I-95 Sept. 8.

To successfully negotiate among grading inconsistencies, do what the specialists do: look at a lot of coins and cherrypick the best in the level you can afford.

I recently decided to go through $200 face value of “junk” 1964 Kennedy half dollars to separate anything worthwhile.

U.S. Mint Sculptor-Engraver Jim Licaretz's scheduled retirement at the end of calendar year 2016 will leave the bureau's engraving staff down two personnel.

A possible solution (or not) to the Mint’s fast sellouts of limited products

In 1982 the Mint changed the cent from a 95 percent copper and 5 percent zinc composition to zinc with copper plating. An old planchet stuck around awhile.

Mike Diamond has recently discovered that a pair of his longstanding assumptions about a certain kind of error coin have been falsified.

The attraction that brings tourists to New England in the fall also appears on the longest-running series of coins struck in colonial New England: trees.

The price that was paid in a recent online sale was extraordinary for a Peace dollar coin that has few visual equals.

Five original, preliminary flying eagle sketches by the designer of the Standing Liberty quarter, Hermon Atkins MacNeil, were sold at auction recently.