CELESTION CHASSIS DATE CODES

Since 1956, all Celestion chassis drivers have been stamped with a date code (2 numbers and 2 letters), denoting the exact date of manufacture. The codes are added on the production line and are placed on the speaker's housing leg or the magnet edge. The following lists provide an accurate record of the date codes used.

1956 - 1962
YEAR	CODE	MONTH	CODE
1956	A	January	A
1957	B	February	B
1958	C	March	C
1959	D	April	D
1960	E	May	E
1961	F	June	F
1962	G	July	G
		August	H
		September	I
		October	J
		November	K
		December	L

The datecodes from 1956 to 1962 are written in the form: Day, Month, Year. For example: 15DE = 15th April 1960

1963 - 1967
YEAR	CODE	MONTH	CODE
1963	H	January	A
1964	J	February	B
1965	K	March	C
1966	L	April	D
1967	M	May	E
		June	F
		July	G
		August	H
		September	J
		October	K
		November	L
		December	M

Note the loss of the 'I' from the month codes. The date codes from 1963 to 1967 are written in the form: Day, Month, Year. For example: 19MK = 19th December 1965

1968 - 1991
YEAR	CODE	MONTH	CODE
1968	A	January	A
1969	B	February	B
1970	C	March	C
1971	D	April	D
1972	R	May	E
1973	F	June	F
1974	G	July	G
1975	H	August	H
1976	J	September	J
1977	K	October	K
1978	L	November	L
1979	M	December	M
1980	N
1981	P
1982	Q
1983	R
1984	S
1985	T
1986	U
1987	V
1988	W
1989	X
1990	Y
1991	Z/A

The date codes from 1968 to 1991 are written in the form: Month, Year, Day. For example: KH7 = 7th October 1975

1992 -
YEAR	CODE	MONTH	CODE
1992	B	January	A
1992	V	February	B
1993	D	March	C
1995	E	April	D
1996	F	May	E
1997	G	June	F
1998	H	July	G
1999	J	August	H
2000	K	September	J
2001	L	October	K
2002	M	November	L
2003	N	December	M
2004	P
2005	Q