Here are very clean 2c Washingtons arranged from type I, II & III

You can tell that the type II has a very strong defined lines in the toga rope and button compared to the above example. Another place to look is the locks of hair but if you don't have a lot of experience with this, it just becomes confusing.

If you look at the above type II and the below type III you can see they look the same. The difference here is in the shading lines in the right ribbon, The type III has two lines in the below picture and the type II has only one. Another area to look at is the upper right Laurel berry,Type III below has a check inside the berry and the type II has an indistinct blob inside the upper right berry.

I'll crop and post other areas to look at.
Type I ribbon

Type II below

Type III with the second line in the ribbon.

Type I &II Laurel Berry with indistinct blob.

Notice the check mark in type III
