Recent Articles by this Author
From the PCGS Grading Room: Contemporary Imitations, Numismatic Restrikes, & Fantasies
By Kyle Clifford Knapp for PCGS ......
Much of the work of a professional authenticator involves verifying that the coin, token, or medal being examined...
From the PCGS Grading Room: Which Coins Are Real?
By Kyle Clifford Knapp for PCGS ......
Among the first questions most often received upon proudly informing an unfortunate dinner partner that one is a...
From the PCGS Coin Grading Room: Surface Smoothing and Other Metal Mischief
By Kyle Clifford Knapp for PCGS ......
One of the many dreaded PCGS No Grades that may prevent a coin from receiving a numeric (70-point...
From the PCGS Coin Grading Room: How X-Ray Technology Helps Authenticate Coins
By Kyle Clifford Knapp for PCGS ......
Experts at PCGS use a variety of technical methods when identifying and authenticating coins. One essential and often...
From the PCGS Coin Grading Room: Missing Mintmarks
By Kyle Clifford Knapp for PCGS ......
Mintmarks provide an easy tool for identifying a coin's mint of origin and have been used in various...
Rainbow-Toned Morgan Dollars
By Kyle Clifford Knapp for PCGS ......
An 1881-S Morgan Dollar graded PCGS MS67+ and bearing a price guide value of $1,100 realized $19,387 USD....
From the PCGS Coin Grading Room: Distribution, Condition Census and Provenance
By Kyle Knapp for PCGS ......
Any introduction to coin grading begins with broad, theoretical descriptions of each grade category: mostly full rims for “Good”,...
Horses and Torses: Collecting New Jersey Coppers as Illustrated by the E Pluribus Unum...
By Kyle Clifford Knapp for PCGS ......
The Stack’s Bowers Galleries sale of the E Pluribus Unum Collection of New Jersey Coppers in Baltimore in...
