Coins and paper currency are among the most frequently counterfeited collectibles in the world. From altered mintmarks to deceptive digital reproductions, counterfeiters continue to innovate, making it more important than ever for collectors to recognize the warning signs. This guide breaks down the red flags used by professional numismatists to screen for fakes—before you buy, sell, or add a piece to your collection.
DJR Expert Guide Series, Vol. 12 teaches you how to evaluate coins and currency using weight, metal composition, surface behavior, printing quality, and modern security features. You’ll learn how to identify counterfeit strikes, cast coins, altered dates, manipulated mintmarks, artificial toning, digital reprints, and fake modern notes.
Inside, you’ll learn how to:
Identify incorrect weight, thickness, diameter, and metal composition
Recognize casting flaws, texture inconsistencies, and tooling marks
Detect artificially aged coins, cleaning damage, and chemical treatments
Evaluate edge design, strike characteristics, and minting precision
Identify fake, altered, or digitally reproduced paper currency
Understand genuine security features such as UV fluorescence, watermarks, and threads
Spot altered denominations, glued corners, and tampered serial numbers
Know when to seek professional authentication for high-value coins and notes
This guide distills years of numismatic research and hands-on authentication experience into a clear, practical reference—giving you the confidence to avoid dangerous counterfeits and protect your collection.
Digital Download — $49 • PDF • 8 Pages • Instant Access
Coins and paper currency are among the most frequently counterfeited collectibles in the world. From altered mintmarks to deceptive digital reproductions, counterfeiters continue to innovate, making it more important than ever for collectors to recognize the warning signs. This guide breaks down the red flags used by professional numismatists to screen for fakes—before you buy, sell, or add a piece to your collection.
DJR Expert Guide Series, Vol. 12 teaches you how to evaluate coins and currency using weight, metal composition, surface behavior, printing quality, and modern security features. You’ll learn how to identify counterfeit strikes, cast coins, altered dates, manipulated mintmarks, artificial toning, digital reprints, and fake modern notes.
Inside, you’ll learn how to:
Identify incorrect weight, thickness, diameter, and metal composition
Recognize casting flaws, texture inconsistencies, and tooling marks
Detect artificially aged coins, cleaning damage, and chemical treatments
Evaluate edge design, strike characteristics, and minting precision
Identify fake, altered, or digitally reproduced paper currency
Understand genuine security features such as UV fluorescence, watermarks, and threads
Spot altered denominations, glued corners, and tampered serial numbers
Know when to seek professional authentication for high-value coins and notes
This guide distills years of numismatic research and hands-on authentication experience into a clear, practical reference—giving you the confidence to avoid dangerous counterfeits and protect your collection.
Digital Download — $49 • PDF • 8 Pages • Instant Access
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