Forgery

Demand video verification of physical slabs for transactions over $10K; reject image-only sales immediately.

Verdict: Avoid 1926 Buffalo Nickels except certified NGC/PCGS top grades; skip bulk lots and bargains—wait 24 months for detection methods to mature.

eBay is unable to remove obvious counterfeits, yet platform counterfeit reports languish unaddressed. Buy only NGC/PCGS-certified numismatics to mitigate systemic authentication risk.

Conclusion: Online forum discussions highlighted suspicious silver coin listings featuring inconsistent seller details, multiple accounts, and prior

Conclusion: The rigorous authentication and dating of high-value gold coins demand comprehensive historical, metallurgical, and

Action: High-value authenticated coins demand secondary verification—dual grader cross-check non-negotiable above $50K.

Action: 1795 Skidmore half-pennies demand authentication even at high grades; buy only certified examples or avoid.