Illinois - Passenger
General Information:
Plates in my collection:
Illinois - Passenger


1917
Passenger
Front plate. These became slotted in 1914 after customers' complaints that the plates blocked the airflow to the radiators, causing overheating of the engines.
1917
Passenger
Rear plate


1920
Passenger
1921
Passenger


1923
Passenger
1926
Passenger


1927
Passenger
1928
Passenger


1931
Passenger
1932
Passenger


1939
Passenger
1940
Passenger


1941
Passenger
1942
Passenger


1943
Passenger
First of six soybeans issues (non-metal)
1943
Passenger
Made of Soybeans


1944
Passenger
Made of Soybeans
1945
Passenger
Made of Soybeans


1945
Passenger
Made of Soyboard
1946
Passenger
Made of Soybeans


1947
Passenger
Made of Soybeans
1947
Passenger
Made of Soyboard


1948
Passenger
Made of Soyboard
1949
Passenger


1949
Passenger
1949
Passenger
(7 digit serials are longer plates)


1950
Passenger
1951
Passenger


1952
Passenger
1953
Passenger


1954
Passenger
1955
Passenger


1956
Passenger
1957
Passenger


1958
Passenger
1959
Passenger


1960
Passenger
1961
Passenger


1962
Passenger
1963
Passenger


1964
Passenger
1965
Passenger


1966
Passenger
1967
Passenger


1968
Passenger
1968
Passenger


1969
Passenger
1970
Passenger


1971
Passenger
1972
Passenger


1973
Passenger
1974
Passenger


1975
Passenger
The colors of these plates honored the Caterpillar Tractor Coy on their 75th anniversary in Illinois.
1976
Passenger


1977
Passenger
1978
Passenger


1983-2000
Passenger
Same base plate throughout the years, only the serial format changed.
1983-2000
Passenger

2001-Current
Passenger