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The original purpose was for quality control. The date codes have since become an invaluable tool for Zippo collectors. Most lighters fabricated between 1933 and 1957 can be identified by style and model and the patent or patent-pending marks.

The date codes have since become an invaluable tool for Zippo collectors. Most lighters fabricated between 1933 traffic 1957 can be identified networks style and model and the patent or patent-pending marks. The appearance cafepharma the word "Zippo" in dating start undertale piano tutorial bottom stamp provides another clue to dating.

There dating been three major changes, as show in inset. From 1933 to the mid 50s, the word Zippo was stamped in block letters. The Zippo script logo was developed in the late 40s and was phased-in on the lighter bottom stamp around 1955. In the late 70s the logo was redesigned. It was incorporated into the bottom stamp in 1980. What began as a quality-control tool for Zippo founder George G. Blaisdell has become a collectors dream.

To identify a potential pattern in any run of lighters returned for repair, the bottom of every Zippo lighter was encoded with a series of markings.

Since the 1950s, those markings rooms a way to accurately date most Zippo lighters. The world-famous guarantee that It works or we fix it free still covers every Zippo windproof pocket lighter today. If your Zippo lighter needs repair contact our Australian Zippo Repair clinic here. Zippo dating marks. Still have a question. Ask your own. Valuable information on the bottom of every Zippo windproof lighter can help you determine its date of manufacture. Starting in the mid 50s, a date code was stamped on the bottom of every Zippo lighter made.

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1947 - Zippo returned to making cases of brass 1951 - Because of the Korean War, Zippo went back to making steel lighters which were chromed instead of being painted, as in WW2.

SOURCES: The information presented here came from researching a number of Internet sites with bits and pieces from each. The table of date codes is reproduced from Warman's Zippo Lighters Field Guide.

Zippo Date Code Chart. Footnotes for Zippo Date Code Chart. On some lighters, this number was stamped in error, should have been Patent 2032695.