Decoding your LOF (Libby, Owens, Ford) glass.

Codes are two letter such as YZ (month/year) where "Y" is October and "Z" is 1967

Month Codes Year Codes
N ~ Jan
X ~ Feb
L ~ Mar
G ~ Apr
J ~ May
I ~ Jun
U ~ Jul
T ~ Aug
A ~ Sep
Y ~ Oct
C ~ Nov
V ~ Dec
 		 G ~ 1964
J ~ 1965
A ~ 1966
Z ~ 1967
X ~ 1968
V ~ 1969
T ~ 1970
N ~ 1971
Y ~ 1972

Other information found on the glass may include:
* Shaded Soft-Ray - If the glass is tinted
* AS - American Standards Association
* AS-1 - The -1 indicates windshield glass (Laminated)
* AS-2 - The -2 indicates body glass (Tempered)
* M3 - LOF manufacturing code for non-tinted windshield
* M4 - LOF manufacturing code for tinted windshield
* M51 - LOF manufacturing code for body glass