It's probably not dishwasher safe - most pottery of that era is not.

I have seen similar swirled-rim earthenware at various places like Crate and Barrel, World Market, etc.

I'm also thinking probably NOT good to go in dishwasher. WHO had a dishwasher back in the 40's? Thinking most restaurants (unless big, high-end places) probably had HUMAN dishwashers then??

I have a beautiful set and they are dishwasher safe.

I would put them in the dishwasher but not the dry cycle. It's that heat plus any detergent residue that clouds glass and dulls dishes

And I knew 2 families that had a dishwasher in the 40's.

I have a full set if these, does anyone know how much theyre worth? im boxing and saving to hand down but want to know more about them. thanks!