There are date codes on the side windows, windshields and rear glass. It's a two digit code with the first letter being the month and the second letter denoting the year.
The code is displayed under "Flo-Lite" to right right of the LOF logo.
Month Code
January N
February X
March L
April G
June I
July U
August T
September A
October Y
November C
December V
Year Code:
1968 X
1969 V
1970 T
1971 N
1972 Y
1973 U
1974 L
1975 I
1976 C
1977 G
1978 J
1979 A
1980 Z
1981 X
