Too soon for another grill and rad ID?

My friend owns Bruce's Auto in the small town I live in. When he and his family bought the bussiness I helped him personify the parts show room with my old car memorabilia. As a result a customer brought in this grill shell and rad for him to keep, free!

We would like to know what it came from. The vanes in the grill are moveable and open and close, though currently seized. Any input is much appreciated.

 

willys whippet

 

Es***, probably 30-31.

 

Any one else want to put their two cents in?

 

Looks just like my 1929 Es***