As with most collectables, the age of an item may have a great influence on its value. This also goes for Zippo Lighters. Whether your lighter was made 5 or 80 years ago can be a difference of hundreds, even thousands of euros. Yes, not kidding.
The bottom of every Zippo lighter is stamped with valuable information. From 1933 to 1957 this was the logo (in block letters) with patent or patent-pending marks. From 1957 onwards a date code was stamped on the bottom of every Zippo made, which makes it possible to trace back what year the lighter was produced. From July 1986 the bottom of every Zippo lighter also included a letter for the month it was produced.
Since there are some exceptions and special mentions to this system, we at The Lighterhouse made an easy and efficient guide to knowing everything about the age of your Zippo lighter.