Links for information on USPS counterfeit and fraudulent stamps. 

• Report Fraud and Scams to US Postal Inspection Service  https://www.uspis.gov/report or email directly PostageFraudReporting@uspis.gov

• USPS Fights Counterfeit Postage -YouTube video https://www.youtube.com/watch?v=Sq1hLWELs4w

• USPS Counterfeit Stamps -YouTube video https://www.youtube.com/watch?v=MPzNdcJPLL4

• US Postal Inspection Service - https://www.uspis.gov/

• More info about where to purchase stamps to ensure they are not fraudulent - https://www.uspis.gov/news/scam-article/counterfeit-stamps