Pyrex (4) Nesting Mixing Bowls (3) 401s + (1)

There are four bowls, all Pyrex Oven Ware, Made in USA, each is 1.5 pints: 

Darker Blue - 401 25

Blue-Green lighter wear - no numbers

Blue-Green heavy wear - 401 24

The wear on the bowls ranges from minimal to substantial, see pics.