This model had a 5-barrel chrome plated steel case. There were three bottom variations. The bottom letterings were alike, but differed as far as the depth of the strike that was made when stamping it. All the "shorter and more compact" logo. This model has the "full stamp" bottom logo on a chrome plated steel case with a 5-barrel hinge. Early models had the patent number whereas later models had the patent number with the large pat. Very similar to the model except that it has a 5-barrel hinge on a chrome-plated brass case.
Later models began using the patent number. Mid Zippo changed the Logo to a stylized "Zorro" script style slanting from lower left side towards the upper right-hand side. The actual design is not shown in the codes below. Zippo also began adding coding marks mid The "dots" on the left and right sides of the Zippo logo are located near the top of the Zippo logo, but this couldn't be shown.
In , note that one dot has been removed from the left side. The date code has since become an invaluable tool for Zippo collectors. Most lighters fabricated between and can be identified by style and model and the patent or patent-pending marks. The appearance of the word "Zippo" in the bottom stamp provides another clue to dating. There have been three major changes, as show below.
From 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 In the late 70s the logo was redesigned. It was incorporated into the bottom stamp in What began as a quality-control tool for Zippo founder George G.
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 s, those markings provide a way to accurately date most Zippo lighters. Shop Now. If the Zippo is or later, check the Date Code Chart to find the year and, frequently, month of production.
The Date Code Chart is below. Please note: early Zippos in particular were prone to hinge failure. Many of the early hinges were replaced, as have been some later ones, so the hinge barrel count is not always absolutely accurate as it is possible a repair replacement has been made. NOTE: Every effort is made to have accurate information, but we do not guarantee the accuracy of any information and you use the information presented here at your own risk.
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This site does not support or encourage tobacco use. This site is a reference for collectors or others researching antique cigarette lighters and ashtrays. Slim Zippo Lighters: Slim lighters were first introduced in , with a flat bottom and no date code.
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