Vintage Illinois soybean License Plates were made back in the World War II era because of the need for metal for the war effort. State such as Illinois, Montana, Virginia, Georgia and Alaska all had plates made from compressed soybeans and fiberboard.
Story is that they didn't last long because they tasted good to the livestock and were being eaten off the vehicles by goats and cows!
This plate is a dark green with off white letters and numbers and is in very good condition. It has some scrapes and nicks. Please see the photos. The plate measures about 11 1/2 and 5 1/2. This would make a fine addition to your vintage license plate collection!!