WISCONSIN   1978 1978 1979   1979 1980 1981   1982 1982 1983   1983 1984 1985   1985 1986 1986   1987 1987 1988   1989 1989 1991   1992 1993 1994   1995 1996 1997   1998 1999 SPECIAL ISSUE FOR IRP ?? 1999 "99" Debossed in Lower Right   2001 "99" Debossed in Lower Right Expire 2001 SEMI-TRAILER Expire 2001 SEMI-TRAILER   2001 BASE SEMI-TRAILER