A collection of hundreds of coins certified by Sarasota-based Numismatic Guaranty Co. sold for about $8.9 million at an auction hosted by the Swiss auction house SINCONA, according to a news release ...
Coins are one of the most exceptional items in the world of collecting. With various ways to collect coins, the possibilities seem endless. Though some coins are more valuable than others, graded ...
Coin grading is the process by which a certified numismatist determines the grade, or physical condition, of an existing coin. Once the grade is determined, the value of the coin can then be ...
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