1915
Passenger

1941
Passenger

1961
Passenger

1962 - Passenger
Iowa

1963
Passenger

1966
Passenger

1967
Passenger

1968

1969
Passenger

1970
Passenger

1972 base with 1983 sticker

1975-1978
Passenger

1979 / Sticker 1985

1986

Veteran / Sample plate

1996 on
Veteran

From 1992
Sesquintennial 1846-1996

1996
Sesquicentennial 1946-1996

2006
Natural Resources

1998