OKLAHOMA   1978 TWO IN ... 1978 ... A ROW 1978 TRAILER   1979 1979 1980   1981 1982 1982   1983 1984 TRAILER 1985   1987 1988 1989   1990 1991 1992   c.1993 c.2000 BUS c.2001   c.2002 ERROR - WRONG NUMBERING These were actually on the roads !! c.2002 c.2003