Independent counterfeit comparison · J. Kim

Counterfeit Zippo bottom-stamp references

These 21 collector-documented photographs are explicitly separated from genuine Zippo dating records. The years shown refer to claimed date markings or collector attribution, NOT independently proven manufacture dates. A matching appearance is not a definitive authenticity test.

Source: J. Kim · Photo copyright: See each individual photograph for its copyright holder.

Look for impossible date letters, unusual stamp geometry or atypical lettering, but remember that genuine examples can have weak strikes, transitional markings or repaired parts. Use multiple independent features.