During the 1970′s, the 3rd and 4th digit of the serial number indicate the year of manufacture.1972 – 12729030
1973 – 12731254
1974 – 12745400
1975 – 12753382
1976 – 12764553
1977 – 12775790
1978 – 12781317
1979 – 12791801
1980 – 00102143
1981 – 00106981
1982 – 00111892
1983 – 00117142
1984 – 00122663
1985 – 00128485
1986 – 00134903
1987 – 00141658
1988 – 00148774
1989 – 00156006
1990 – 00162968
1991 – 00170073
1992 – 00177116
1993 – 00184318
1994 – 00189050
1995 – 00197400
1996 – 00205400
1997 – 00213000
1998 – 00219500
1999 – 00228250
2000 – 00235000 |
