Coin Authentication Database

Comprehensive guides to detecting counterfeit precious metal coins. Learn specifications, resonance frequencies, and how to spot fakes.

Gold Krugerrand

South Africa
gold
  • Weight:33.93g
  • Diameter:32.77mm
  • Purity:22 karat
  • c0d2 Frequency:4523 Hz

Gold American Eagle

United States
gold
  • Weight:33.93g
  • Diameter:32.7mm
  • Purity:22 karat
  • c0d2 Frequency:4612 Hz

Gold Maple Leaf

Canada
gold
  • Weight:31.1g
  • Diameter:30mm
  • Purity:24 karat
  • c0d2 Frequency:4891 Hz

Silver American Eagle

United States
silver
  • Weight:31.1g
  • Diameter:40.6mm
  • Purity:.999 fine
  • c0d2 Frequency:5234 Hz

Silver Maple Leaf

Canada
silver
  • Weight:31.1g
  • Diameter:38mm
  • Purity:.9999 fine
  • c0d2 Frequency:5456 Hz

Gold Britannia

United Kingdom
gold
  • Weight:31.1g
  • Diameter:32.69mm
  • Purity:24 karat
  • c0d2 Frequency:4867 Hz

Gold Sovereign

United Kingdom
gold
  • Weight:7.98g
  • Diameter:22.05mm
  • Purity:22 karat
  • c0d2 Frequency:6234 Hz

Silver Britannia

United Kingdom
silver
  • Weight:31.1g
  • Diameter:38.61mm
  • Purity:.999 fine
  • c0d2 Frequency:5378 Hz

Gold Philharmonic

Austria
gold
  • Weight:31.1g
  • Diameter:37mm
  • Purity:24 karat
  • c0d2 Frequency:4923 Hz

Silver Philharmonic

Austria
silver
  • Weight:31.1g
  • Diameter:37mm
  • Purity:.999 fine
  • c0d2 Frequency:5312 Hz

Morgan Silver Dollar

United States
silver
  • Weight:26.73g
  • Diameter:38.1mm
  • Purity:.900 fine
  • c0d2 Frequency:5189 Hz

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