1: Learn key characteristics of genuine coins to spot counterfeits in your collection.

2: Check for weight, size, and design details to authenticate rare coins.

3: Avoid fakes by purchasing coins from reputable dealers and sources.

4: Utilize magnifiers and scale tools to examine tiny details on coins.

5: Research coin values and market trends to detect counterfeit coins.

6: Handle your collection with care to preserve its authenticity and value.

7: Consult coin experts and appraisers for professional authentication services.

8: Keep records and documentation of your coin purchases and transactions.

9: Stay vigilant and updated on new counterfeit techniques to protect your investment.