Are you not sure what syled and unstyled term refers to for Allis Chalmers and John Deere tractors?
Let JR show you the quick and easy way to tell.
Unstyled tractors have an exposed radiator (no grille covering the radiator) these were early tractors in the model series.
Styled tractors had a grille covering the radiator, these were the the later tractors in the model series.