Need help with old stoneware bowl

I'm clearing out my garage and will be asking for help from the experts here before I sell some things I bought years ago. I bought this bowl at a garage sale in Wisconsin and am wondering if anyone can tell me if I should refer to this as creamware or just cream-colored stoneware. I'd also like to know if I should call it a cereal bowl, soup bowl, or just a small bowl; and how old it is and where it might have been made (no marks on the bottom). Any help would be appreciated. The photo with the ruler is a little deceiving (it's 6.5" across the top).

 

I think it's restaurant ware from the 1930's to '50's. May have been used for soup/chili/salad or cereal.

 

Now that I look more closely, it does look like an old restaurant soup bowl. Thank you so much, Sandra, for your information.