While the information for dating a Zippo is widely available, it isn't that handy to find it all in a single location.
This should provide the information to fix a relatively precise date for any Zippo lighter.
Zippos had a flat bottom until 1946 when the bottoms were indented.From 1933 to the mid 50s the word Zippo was stamped in block letters. From August, 1949 through July, 2002 Zippos were also produced in Niagara Falls, Canada - the only place other than Bradford, PA where they were ever produced.The Zippo script logo was developed in the late 40s and was phased-in on the lighter bottom stamp around 1955. About 13.5 million lighters were produced by Zippo Canada.No, people weren't getting burned from these malfunctioning butane-fueled gadgets. The man's spindly legs are more narrow than his Zippo.They were losing their chances to date bikini-clad young ladies. Women wouldn't give you the time of day if your lighter wouldn't light up on that first zip. And he's so white the white stripes on his shirt are darker than his skin. As long as his lighter strikes up on that first zip, he's a dream come true.While it had previously been common to have Zippos with authorized badges, unit crests and division insignia, it became popular among the American soldiers of the Vietnam War to get their Zippos engraved with personal mottos.