Buying a ‚Äėproblem coin‚Äô can be a bit of a balancing act: Inside Coin World
... t buy problem coins seems to be breaking down as astute collectors realize that many coins have been cleaned at some time in their history and as grading services take the guesswork out of confirming the authenticity of problem coins,‚ÄĚ Roach writes.
Designer coins: 10 best from Mint engraver Charles Barber
High-grade (Very Fine to Mint State) examples are elusive across the board, as little numismatic notice was paid to the date until the 1930s, by which time most had become well worn.‚ÄĚ The September 2017 edition of Numismatic News ‚ÄúCoin Market ...
The Gold and Silver Mine: Tomorrow's rare coins today
They are members of the American Numismatic Association, the Industry Council of Tangible Assets, the Numismatic Guarantee Corp., the Certified Coin Exchange and the Professional Coin Grading Service.