1953 - 1982 LOF Glass Date Codes

LOF Month Codes:

January 1953-1956	L
January 1957-1982	N
February 1953-1957	M
February 1958-1982	X
March 1953-1956	N
March 1957-1982	L
April 1953-1957	K
April 1958-1982	G
May 1953-1982	J
June 1953-1982	I
July 1953-1957	H
July 1958-1982	U
August 1953-1982	T
September 1953-1957	E
September 1958-1982	A
October 1953-1957	F
October 1958-1982	Y
November 1953-1982	C
December 1953-1982	V

Above year references are for Calendar Year, not Model Year.

LOF Calendar Year Codes:

1953, 1966, 1979	A
1954, 1967, 1980	Z
1955, 1968, 1981	X
1956, 1969, 1982	V
1957, 1970	T
1958, 1971	N
1959, 1972	Y
1960, 1973	U
1961, 1974	L
1962, 1975	I
1963, 1976	C
1964, 1977	G
1965, 1978	J

The charts indicate the Libby-Owens-Ford (LOF) automobile glass date of manufacture codes for their glass. The LOF logo will list the code as month/year. Examples: "KT" is April of 1957; "GX" could be April of 1968 or 1981. LOF was the major supplier of glass to General Motors and it is unlikely glass from other manufacturers was used on the assembly line.

LOF glass will also carry the American Standard specification rating codes for type and clarity - "AS1" for windshields, "AS2" for side door/vent and coupe rear glass.

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