Coin Authentication Guide

Learn to identify genuine coins and spot counterfeits with our comprehensive guides

Important: When in doubt, always consult with professional authentication services. This guide is for educational purposes only.
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Quick Tips
  • Check weight and dimensions
  • Examine edge details
  • Look for die markers
  • Test magnetism (gold/silver)
  • Verify date/mintmark placement
Authenticating Morgan Silver Dollars Beginner
Morgan Silver Dollars
Morgan Silver Dollars are among the most counterfeited US coins. Key authentication points include checking the weight (26.73 grams), examining the edge reeding, and verifying the sharpness of design details. Genuine Morgans have a distinctive ring when dropped on a hard surface.
Key Authentication Points:
  • Check weight: 26.73 grams
  • Examine edge reeding pattern
  • Look for sharp design details
  • Test the ring tone
  • Verify date/mintmark placement
Walking Liberty Half Dollar Authentication Beginner
Walking Liberty Half Dollars
Walking Liberty Half Dollars are beautiful coins that attract counterfeiters. The flowing lines of Liberty's gown and the eagle's feathers should be sharp and well-defined. Check for proper weight of 12.5 grams.
Key Authentication Points:
  • Sharp design details
  • Correct weight: 12.5 grams
  • Proper silver content
  • Edge reeding pattern
  • Natural wear patterns
Peace Dollar Authentication Guide Intermediate
Peace Silver Dollars
Peace Dollars from 1921-1935 are frequently counterfeited. The relief on genuine Peace Dollars is quite high, especially on the eagle on the reverse. Pay attention to the word PEACE on the rock - it should be sharp and well-defined.
Key Authentication Points:
  • High relief design elements
  • Sharp PEACE inscription
  • Correct weight: 26.73 grams
  • Proper silver color and luster
  • Edge reeding examination
US Gold Eagle Authentication Advanced
Gold Eagles
Gold Eagles require special attention due to their high value. Use a strong magnet - genuine gold is not magnetic. Check weight carefully and examine the fine details in the eagle's feathers. Professional authentication is recommended for valuable pieces.
Key Authentication Points:
  • Non-magnetic properties
  • Exact weight specifications
  • Fine detail examination
  • Professional verification recommended
  • Beware of gold-plated fakes
General Authentication Tips
Visual Inspection
  • Check surface quality and luster
  • Look for proper wear patterns
  • Examine edge details and reeding
  • Verify correct fonts and spacing
Physical Tests
  • Weigh the coin (compare to specifications)
  • Measure diameter and thickness
  • Magnet test (gold/silver are non-magnetic)
  • Sound test (genuine coins have distinct ping)
Red Flags
  • Wrong weight or size
  • Magnetic attraction (precious metals)
  • Obvious casting lines or bubbles
  • Incorrect date/mintmark combinations
Tools Needed
  • Magnifying glass (10x minimum)
  • Precision scale (0.01g accuracy)
  • Calipers for measurements
  • Strong magnet (neodymium)
Still Not Sure?

Professional authentication services provide definitive answers for valuable coins.