Zippo on Twitter: "When did Zippo start stamping date codes on the bottom of every lighter? #ZippoTrivia https://t.co/mOxDKf6oD2" / Twitter
Zippo - Roll call! 📣 How old is your oldest lighter vs. your newest lighter? Psst, you can tell by reading about our date code system here: https://fal.cn/3gztv | Facebook
![File:Zippo Lighter Collection, Zippo The Great American Lighter By David Poore Book Cover On A Zippo Lighter, Made In USA, Date Code F 02 (Circa 2002) (40860562622).jpg - Wikimedia Commons File:Zippo Lighter Collection, Zippo The Great American Lighter By David Poore Book Cover On A Zippo Lighter, Made In USA, Date Code F 02 (Circa 2002) (40860562622).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/6c/Zippo_Lighter_Collection%2C_Zippo_The_Great_American_Lighter_By_David_Poore_Book_Cover_On_A_Zippo_Lighter%2C_Made_In_USA%2C_Date_Code_F_02_%28Circa_2002%29_%2840860562622%29.jpg)