Counterfeit Detection

Papal States (1676) Piastra

Numismatic Guaranty Company recently received a purported example of a rare Papal States piastra in a submission from a large auction house. 

Netherlands 1898 10 Gulden

NGC recently received a purported example of a Netherlands 1898 10 gulden that appears to have been made with the transfer-die process.

Defending Against Counterfeit Cash

With 100 million counterfeit notes in circulation, does paper money in the United States have enough security features?

1943 Bronze Lincoln Cent

The king of U.S. Mint errors is the 1943 bronze cent, and counterfeiters have attempted to cash in on the excitement of this storied coin.

1893-CC Morgan Dollar

Numismatic Guaranty Company recently received a purported example of the 1893-CC business-strike Morgan dollar.

Cutting Out Counterfeits

Research by the U.S. Federal Reserve Board shows that the number of counterfeit bills in circulation has plunged over the past 20 years.

1869-S Seated Liberty Quarter

Numismatic Guaranty Company recently received a purported example of an 1869-S quarter, and plenty of clues point to its true origins.

Hiding in Plain Sight: An Introduction to Counterfeits

Hiding amongst your collection or in online coin listings, counterfeits can add significant challenges to buying and selling coins.

Washington Presidential Dollar

NGC received a purported example of a Washington Presidential dollar that can be easily identified as a counterfeit by its design variations.

Switzerland 1826 Bern 5 Batzen

(1694) Elephant Token

Numismatic Guaranty Company (NGC) recently received a purported example of an enigmatic (1694) Elephant token.

1937 Walking Liberty Half Dollar

NGC recently received a purported 1937 Walking Liberty half dollar. A glance at the sun sheds enough light to declare this coin a fake.