Patent-   number	Hinges	Chimney	Bottom	Case-    styling	Case-     finish	Insert	Special-Features
LATE 1932	Pat. Pending	3 Barrel outside	16 Holes	Flat	Square Corner	Chrome on Solid Brass	Polish Brass
1933	Pat. Pending	3 Barrel outside	16 Holes	Flat	Square Corner	Chrome on Solid Brass	Polish Brass	Two diagonal Lines on the Lid and the Case
1934	Pat. Pending	3 Barrel outside	16 Holes	Flat	Square Corner	Chrome on Solid Brass	Polish Brass	1/4 inch shorter
1935	Pat. Pending	3 Barrel outside	16 Holes	Flat	Square Corner	Chrome on Solid Brass	Polish Brass
EARLY 1936	Pat. Pending	4 Barrel outside	16 Holes	Flat	Square Corner	Chrome on Solid Brass	Polish Brass	3/3/1936 giving the patent of a “Pocket-Lighter”
LATE 1936	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Square Corner	Chrome on Solid Brass	Polish Brass
1937	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	Chrome on Solid Brass	Polish Brass
1938	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	Chrome on Solid Brass	Polish Brass
1939	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	Chrome on Solid Brass	Polish Brass	The end of diagonal Lines
1940	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	Chrome on Solid Brass	Polish Brass
EARLY 1941	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	Chrome on Solid Brass	Polish Brass
LATE 1941	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	BlackCrackle on Steel	Steel	Some Cases were chrome On Steel
1942	Pat. 2032695	4 Barrel inside	14 Holes	Flat	Rounded Corner	BlackCrackle on Steel	Steel	Some were stamped in Error Pat.”203695”
1943	Pat. 2032695	3 Barrel inside	14 Holes	Round	Rounded Corner	BlackCrackle on Steel	Steel
1944	Pat. 2032695	3 Barrel inside	14 Holes	Round	Rounded Corner	BlackCrackle on Steel	Steel
1945	Pat. 2032695	3 Barrel inside	14 Holes	Round	Rounded Corner	BlackCrackle on Steel	Steel
1946	Pat. 2032695	3 Barrel inside	14 Holes	Canned Bottom	New Style So as today	Nickel Silver	Nickel Silver	Only ´46 Zippos were made in Nickel Silver
1947	Pat. 2032695	3 Barrel33 inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Brass	Nickel
1948	Pat. 2032695	3 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Brass	Nickel
1949	Pat. 2032695	3 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Brass	Nickel
1950	Pat. 2032695	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Brass	Nickel	Only ´50 Zippos were made in Leather
1951	Pat. 2032695	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Brass	Nickel
1952	Pat. 2032695	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Steel	Stainlesss Steel
1953	Pat2517191 Pat Pend	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Steel	Stainless Steel	3/3/1953 the Pat.Nr. is changed
1954	Pat2517191 Pat Pend	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Steel	Stainless Steel
1955	Pat2517191 Pat Pend	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Steel	Stainless Steel
1956	Pat2517191 Pat Pend	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Steel	Stainless Steel
1957	Pat2517191 Pat Pend	5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Steel	Stainless Steel	There were a aluminum Case only in ´57
1958		5 Barrel inside	16 Holes	Canned Bottom	Today´s Design	Chrome over Brass	Stainless Steel	Till today this features are not changed.
1958	. . . . Pat2517191	. . . . Pat Pend
1958	. . . . Pat2517191	. . . .
1958	. . . .             Pat	. . . . 2517191
1959	. . . . Pat2517191	. . . Pat Pend
1959	. . . .             Pat	. . . 2517191
1960	. . .             Pat	. . . 2517191
1961	. . .             Pat	. . 2517191
1962	. .             Pat	. . 2517191
1963	. .             Pat	. 2517191
1964	.             Pat	. 2517191
1965	.                       Pat	2517191
1966	| | | |             Pat	| | | | 2517191
1967	| | | |           Pat	| | |  2517191
1967	| | | |	| | |
1968	| | |	| | |
1969	| | |	| |
1970	| |	| |
1971	| |	|
1972	|	|
1973	|
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1980	/	/
1981	/
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1986	\\	\\
1986	A-L	II
1987	A-L	III
1988	A-L	IV
1989	A-L	V
1990	A-L	VI
1991	A-L	VII
1992	A-L	VIII
1993	A-L	IX
1994	A-L	X
1995	A-L	XI
1996	A-L	XII
1997	A-L	XIII
1998	A-L	XIV
1999	A-L	XV
2000	A-L	2000     XVI
2001	A-L	01
2002	A-L	02
2003	A-L	03
2004	A-L	04
2005	A-L	05
2006	A-L	06
2007	A-L	07
2008	A-L	08
2009	A-L	09
2010	A-L	10