Zippo - Zippo Dates

Zippo Dates

From mid-1955 Zippo started year coding their lighters by the use of dots (.). From 1966 until 1973 the year code was denoted by combinations of vertical lines (|). From 1974 until 1981 the coding comprised combinations of forward slashes (/),in 1979 an error was made some lighters read / on the left and // on the right, it was fixed within the year to read //left and / right and from 1982 until June 1986 the coding was by backslash (\).

After July 1986, Zippo began including a lot code on all lighters showing the month and year of production. On the left of the underside was stamped a letter A–L, denoting the month (A = January, B = February, C = March, etc.). On the right was a Roman numeral which denoted the year, beginning with II in 1986. Thus a Zippo stamped H IX was made in August, 1993. However in 2001, Zippo altered this system, changing the Roman numerals to more conventional Arabic numerals. Thus a Zippo made in August 2004 was stamped H 04. There was a myth that Zippo lighters were made by prisoners, and the number identified the prisoner, or their crime and sentence length. Another myth was that a Zippo stamped 'H' was inferior to one stamped 'A'.