How old are your ZIPPO lighter ???

	REGULAR		SLIM
YEAR	LEFT	RIGHT	LEFT	RIGHT
1933	PAT. PENDING on the flat bottom
1936	PAT. PENDING on the flat bottom
1937	PAT. 2032695 on the flat bottom
1942	PAT. #203695 were stamped to some W.W. Steel lighters
1943	PAT. 2032695 on the flat bottom
1946	PAT. 2032695 on the indented bottom
1953	PAT. 2032695 on the indented bottom
1953	PAT. 2517191 with PAT. PEND.
1955	Full stamp with PAT. PEND.

1955	Full stamp with PAT. PEND.
1956	Full stamp with PAT. PEND.		It has a Flint-wheel Guard in Chimney
1957	Full stamp without " PAT. PEND."		On the flat bottom
1958	Full stamp, no " PAT. PEND."
1959
1960
1961
1962
1963
1964
1965

1966
1967
1967	Same code without " PAT. 2517191"		On the indent bottom
1968
1969
1970
1971
1972
1973

1974
1975
1976
1977
1978
1979
1979			New Logo
1980	New Logo
1981

1982
1983
1984
1985
1985	The only stamped to Vintage Series
1986
1986	G to L		SAME AS REGULAR
1987	A to L		SAME AS REGULAR
1988	A to L		SAME AS REGULAR
1989	A to L		SAME AS REGULAR
1990	A to L		SAME AS REGULAR
1991	A to L		SAME AS REGULAR
1992	A to L		SAME AS REGULAR
1993	A to L		SAME AS REGULAR
1994	A to L		SAME AS REGULAR
1995	A to L		SAME AS REGULAR
1996	A to L		SAME AS REGULAR
1997	A to L		SAME AS REGULAR
1998	A to L		SAME AS REGULAR
1999	A to L		SAME AS REGULAR
2000	A to L		SAME AS REGULAR

NOTICE : The follwings does not has any ID CODES on their Bottom.
Some of them has the above ID CODE on their INSERT.

10kt. Gold Filled Models
1932 / 1933 Replica Models
Silver-Filled Models
14kt. / 18kt. Solid Gold Models
1955 - 1991 : Sterling Silver Models
1950 - 1952 : Full Covered Leather Models
1939 - 1979 : Old Table Lighters

If you wants more informations about the Bottom Markings,
please visit to " WE LOVE ZIPPO " Home Page
by Mr.HITOSHI OYAMA.

This chart was updated by Mr.HIROSHI KITO
at June, 1999.