Coin Authentication Database
Comprehensive guides to detecting counterfeit precious metal coins. Learn specifications, resonance frequencies, and how to spot fakes.
Gold Krugerrand
South Africa
- Weight:33.93g
- Diameter:32.77mm
- Purity:22 karat
- c0d2 Frequency:4523 Hz
Gold American Eagle
United States
- Weight:33.93g
- Diameter:32.7mm
- Purity:22 karat
- c0d2 Frequency:4612 Hz
Gold Maple Leaf
Canada
- Weight:31.1g
- Diameter:30mm
- Purity:24 karat
- c0d2 Frequency:4891 Hz
Silver American Eagle
United States
- Weight:31.1g
- Diameter:40.6mm
- Purity:.999 fine
- c0d2 Frequency:5234 Hz
Silver Maple Leaf
Canada
- Weight:31.1g
- Diameter:38mm
- Purity:.9999 fine
- c0d2 Frequency:5456 Hz
Gold Britannia
United Kingdom
- Weight:31.1g
- Diameter:32.69mm
- Purity:24 karat
- c0d2 Frequency:4867 Hz
Gold Sovereign
United Kingdom
- Weight:7.98g
- Diameter:22.05mm
- Purity:22 karat
- c0d2 Frequency:6234 Hz
Silver Britannia
United Kingdom
- Weight:31.1g
- Diameter:38.61mm
- Purity:.999 fine
- c0d2 Frequency:5378 Hz
Gold Philharmonic
Austria
- Weight:31.1g
- Diameter:37mm
- Purity:24 karat
- c0d2 Frequency:2115 Hz
Silver Philharmonic
Austria
- Weight:31.1g
- Diameter:37mm
- Purity:.999 fine
- c0d2 Frequency:5312 Hz
Morgan Silver Dollar
United States
- Weight:26.73g
- Diameter:38.1mm
- Purity:.900 fine
- c0d2 Frequency:5189 Hz
Gold Buffalo
United States
- Weight:31.1g
- Diameter:32.7mm
- Purity:24 karat
- c0d2 Frequency:3387 Hz
Gold Panda
China
- Weight:30g
- Diameter:32mm
- Purity:24 karat
- c0d2 Frequency:3766 Hz
Silver Panda
China
- Weight:30g
- Diameter:40mm
- Purity:.999 fine
- c0d2 Frequency:3848 Hz
Peace Dollar
United States
- Weight:26.73g
- Diameter:38.1mm
- Purity:.900 fine
- c0d2 Frequency:4345 Hz
Gold Double Eagle
United States
- Weight:33.44g
- Diameter:34mm
- Purity:.900 fine
- c0d2 Frequency:4091 Hz
Gold Kangaroo
Australia
- Weight:31.1g
- Diameter:32.6mm
- Purity:24 karat
- c0d2 Frequency:3624 Hz
Silver Kangaroo
Australia
- Weight:31.1g
- Diameter:40.9mm
- Purity:.9999 fine
- c0d2 Frequency:3673 Hz
Silver Kookaburra
Australia
- Weight:31.1g
- Diameter:40.6mm
- Purity:.9999 fine
- c0d2 Frequency:3740 Hz
Silver Krugerrand
South Africa
- Weight:31.1g
- Diameter:38.7mm
- Purity:.999 fine
- c0d2 Frequency:4863 Hz
Silver Libertad
Mexico
- Weight:31.1g
- Diameter:40mm
- Purity:.999 fine
- c0d2 Frequency:3858 Hz
1/2 oz Gold Libertad
Mexico
- Weight:15.55g
- Diameter:29mm
- Purity:.900 fine
- c0d2 Frequency:2766 Hz
Silver Koala
Australia
- Weight:31.1g
- Diameter:40.6mm
- Purity:.9999 fine
- c0d2 Frequency:3676 Hz
Gold 100 Corona
Austria
- Weight:33.87g
- Diameter:37mm
- Purity:.900 fine
- c0d2 Frequency:2938 Hz
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